The name

the one from Hegnau.

  1. Hegn- Hagino or Hego, a man’s name: the land was his
  2. -au Old High German ouwa, land beside water
  3. -er a person from a place, as a Zürcher is from Zürich

The short answer

Yes, it is a place name. Hegnauer means "the person from Hegnau". Hegnau is a village in the commune of Volketswil, canton Zürich, first written Hegenowa about 1150. The place name itself means "Hagino's Au": the land by the water that belonged to a man called Hagino (or Hego). The -er ending turns a place into a person, as Zürcher is someone from Zürich.

The name began as a description. From the 1280s people from the village were written dictus Hegnower, "called the Hegnauer". It had become a family name, passed from father to son, by the later 1300s. Hegnauers also lived in the village's own parish: the Volketswil register has them from 1590, two years after it begins. The Elgg, Seengen and Igis lines all carry this one name. The Igis founder's 1715 spelling Hagenauwer is the Igis pastor's way of writing that name. It is not a sign of a different home.

How sure:

  • Very high that the surname comes from Hegnau in Volketswil. Every name book and lexicon consulted says so, and no other place fits.
  • High that Hagenauwer at Igis is the same name (section 6).
  • Open whether all Hegnauers descend from one man. A name meaning "from Hegnau" could have been given to several unrelated people from the village. The papers cannot settle that; Y-DNA can.

How the name was written

16 forms, about 1150 to 1680

The village first, from the Zürich place-name book; then the people it named. Eight centuries of clerks, and hardly two of them agreed.

  1. about 1150 Hegenowa, de Hegenowo ZUR 6 (no. 14), 15 (no. 16)
  2. before 1227 De Hegnoͧwo ZUR 25 (no. 28)
  3. 1209–1233 Hegenowo ZHUB I 246 (no. 365)
  4. 1244 predia mea sita in Hegenowe ZHUB II 115 (no. 607)
  5. 1267 in Heginoͧ ZHUB IV 54 (no. 1343)
  6. 1282 Johannes de Hegnowe ZHUB XIII 84 (no. 1822)
  7. 1296–1300 Hegnowe, Hegenowe ZUR 131 (no. 82); ZHUB VII 125 (no. 2534)
  8. 1306 Hegenowe Habsburg Urbar II/1 316
  9. 1366 Bela von Hegnoͧw Steuerbücher I 158
  10. 1437 Hans Hegnoͧwer von Hegnoͧw Steuerbücher II 500
  11. 1548 "Diß doͤrffle Hegnow" Stumpf's chronicle
  12. 1566 Hegnow Murer's map
  13. 1597 gmeind Hegnouw SSRQ ZH AF I/2 471
  14. 1640 von Eggnauw StAZH E III 89.2
  15. 1667 Hegnauw Gyger's map
  16. 1680 Hegnawerin StAZH E III 60.1

What kind of name it is

A name of origin (in German, a Herkunftsname). The sources that classify the name all treat it this way:

  • The Igis citizens' corporation calls Hegnauer a name of origin from Hegnau, commune of Volketswil, district of Uster (Bürgergemeinde Landquart, quoted in Jacob Hegnauer).
  • The Rätisches Namenbuch, the name book of Graubünden, lists the Igis Hegnauers with the family names that come from places in canton Zürich. It gives the source as "Hegnau, Dorf, Gde. Volketswil" (RN III, p. 565).
  • The new Familiennamenatlas der Deutschschweiz puts Hegnauer on its map of old Swiss names of origin that come from place names ending in -au, beside Klingnauer, Lindauer and Schönauer (FDS, p. 756, map 348).
  • The DFD, Germany's online dictionary of surnames, reports that Brechenmacher already named Hegnau (Volketswil) among the places that could give a name like Hegener (DFD "Hegener", citing Brechenmacher 1957, p. 678).

The -er ending. Swiss German makes the word for a person from a place by adding -er, and -erin for a woman. The Hegnau stories still call every villager a Hegnauer and every village woman a Hegnauerin (Hegnau). The medieval spellings end in -ower or -ouwer because ouwe was the Middle High German form of Au (ZSNB; Steuerbücher I).

From "of Hegnau" to "Hegnauer". The records show the change in progress:

  • 1281–1282, a description. "C. dictus Hegenower" appears in 1281 (Zürcher Familiennamen, p. 85). In 1282 a man at Pfäfers is "Albertus dictus Ischener et dictus Hegnower" (RN III, p. 565). Dictus means "called". Albert had two bynames at once, so neither was yet a fixed family name.
  • 1363–1413, the same man both ways. At Baden (Aargau):
    • Johannes von Hegnau was granted the tithe of Endingen and Würenlingen as a fief in 1363.
    • His son Wilhelm and Wilhelm's brother Jacob are von Hegnow in 1399.
    • In 1413 the same Wilhelm is Wilhelm Hegnöwer (Gessler documents, 1877: documents of 17 Mar 1399, 27 May 1399 and 22 Mar 1413, and the note on 1363). So "von Hegnau" and "Hegnauer" were two forms of one name, and the name had passed from father to son.
  • 1366, a clerk writes the name in. In the Zürich city tax book, "Johans Hegenower" is written above a struck-out "sin koch" ("his cook"). The clerk replaced a description with a name (Steuerbücher I 172).
  • 1437 and 1467–70, a surname even at Hegnau. "Hans Hegnoͧwer von Hegnoͧw" appears in 1437. Herman Hegnauer is taxed at Hegnau itself in 1467–70 (Steuerbücher II 500; VIII, register). A man living in Hegnau who is still called "the Hegnauer" carries a family name, no longer a description of where he came from.

When and where it became hereditary. The name was hereditary among the Baden gentry family by the 1360s. By 1450–70 it was a settled family name among several households in and around Zürich: Hegnau, Wangen, Hirslanden, Oberhusen and the city. Those households included brothers and cousins who all bore it (Steuerbücher VIII, register). In the church books it is fixed from the first entries: Fehraltorf in 1548 (index, to be checked), Elgg in 1553 and Volketswil in 1590 (the list of variants; Where did Jacob Hegnauer come from?).

The spellings in the records

The spellings, century by century →

The 40 commonest ways the records spell it, from the study’s own archive. The size is the number of records; the year is the first time each appears.

The variants the study counts

Which spellings belong to the name and which only look like it. A Hagenauer is usually someone else entirely; a Hegnauwer is one of ours in a seventeenth-century hand.

The study’s list of variants and look-alikes

Add a variant only when an actual record supports it, and cite that record.

"Indexed" below means the spelling is in a FamilySearch index entry (a derivative record); the register image has not been seen. Most of these came from the variant-spelling harvest of 27 Sep 2026 (Variant-spelling harvest, FamilySearch historical records). Examples give the occurrence ID and the FamilySearch record ARK (https://www.familysearch.org/ark:/61903/1:1:<ARK>). An index error is a misreading by the indexer or the OCR, not a spelling anyone used; it is listed only so that searches catch it.

VariantStatusExample record (occurrence ID)Notes
Hegnauercore
Hegenower / Hegnöwer / Hegnoͧwer / Hegnowerconfirmed (historical)Zürich tax books 1366–1470: "Johans Hegenower" 1366 (Steuerbücher I 172); "Hans Hegnoͧwer von Hegnoͧw" 1437 (II 500); register to vols. III–VII (1450–70). See sources/switzerland/zuerich-steuerbuecher.mdEarliest surname forms found; feminine Hegnöwerin/Hegnowerin
Hegnawer / Hegnawerinconfirmed (historical)Zürich parish register 1680, "Hegnawerin" (StAZH E III 60.1), same sourceFeminine -in
von Hegnau / de Hegnoweplace descriptorZürich charters and tax books 1282–1504 (same source)Used for the lords and for villagers with other surnames (e.g. Hans Gul von Hegnau 1483); not a Hegnauer by itself
Hegnouwer / HegnoüwerindexedO04411 (66VS-87W8), Anna Hegnoüwer, bapt. Elgg 3 Sep 1553; O04547 (66VW-8L34), Jacob Hegnouwer, m. Elgg 15 Jul 1554Elgg 1553–1608, the earliest Elgg entries (92 index entries); Winterthur 1607; Bremgarten bei Bern 1609. Feminine Hegnouwerin
HognouwerindexedO04195 (66V3-92S5), Salome, bapt. Elgg 24 Feb 1564Elgg (6 entries): a baptism of 1564 and undated parent entries, among them the fathers Hans Jacob (× Stadelmann) and Andres (× Brünwaldt) of the 1650s–1670s. Probably Hegnouwer with e read as o; check an image
HegnowerindexedO04368 (66VS-2F3S), Fridrich, bapt. Elgg 11 Jan 1573; O04725 (6FZP-82WH), Jacob, m. Zürich 13 Apr 1586; O04803 (6FZT-SMY5), Johans, bapt. Volketswil 25 Aug 1605Also a tax-book form (row above). In the church books: Elgg 1573–1636, Zürich 1573 and 1586, Winterthur 1562, Biel 1604–1625, Volketswil 1605 (37 entries). Feminine Hegnowerin (Winterthur, Kloten)
HegnauwerindexedO04670 (6F8X-JFT8), Melchior, bapt. Pfeffikon LU 16 Jun 1584; O04745 (6FZR-HSJW), Anna, bapt. Volketswil 27 Dec 1594; O04357 (66VS-1XDP), Margreth, bapt. Elgg 1 Jun 1597The usual form from about 1590 to 1700 (239 entries): Elgg 1597–1692, Volketswil 1594–1736 (indexed "Schwyz" until 27 Sep 2026), Luzern Seetal (Pfeffikon, Schongau, Hochdorf, Aesch, Emmen) from 1584, Bern from 1650, Altstetten 1662–1669, Kurzdorf TG 1630. Feminine Hegnauwerin
Hegneüwer / HagneüwerindexedO06015 (6FZR-GXBM), Jacob Hegneüwer, bapt. Volketswil 5 Feb 1682 (H2335); O05952 (6FZR-BGM1), Verena Hagneüwer, mother, Volketswil 8 Sep 1659The Volketswil (Hegnau) register's usual form in 1659–1688 (56 entries in the study); missed by the variant harvest and added on 27 Sep 2026 (Volketswil, the parish of Hegnau: the Hegnauer families, 1590–1801). The same book is indexed with many misreadings: Hegnarwer, Hegendwer, Hegnedwem, Kegneuwer, Kernadwer, Heynadwer, Higrauven, Segnauwer, Gepnauwer, Begnauwer and, in the marriages, "Hegner"
Hagenauwer / Hagenauerindexed; cautionO04546 (66VW-81M1), Jacob Hagenauwer × Margredt Hartmann, m. Igis 1 Mar 1715 (H1434); O04325 (66VM-J5LQ), Hanss Hagenauwer, bapt. Igis 12 Dec 1715; O04567 (66VW-PYWS), Jacob Hagenauer × Leda Kujany, m. Igis 23 Jun 1724 (H1434)The spelling of the Igis founder Jacob and his children, Igis 1715–1734. Hagenauwer also at Zürich 1632, Stein am Rhein 1721, Wagenhausen TG 1724; Hagenauer at Elgg 1667–1689 and 1857–1859, Uster 1816–1848, Bern 1800–1821. Hagenauer is also a separate German and Austrian surname (and a separate Catholic family at St. Gallen, Rorschach and Oberbüren): most US "Hagenauer" records are not Hegnauers. Accept it only when the place or family ties it to a Hegnauer line
Hegenauerindexed; cautionO04253 (66V7-6ZFN), Andreas, bur. Elgg 7 Aug 1675; O04557 (66VW-FJ82), Jakob × Margreth Disch, m. Schiers GR 31 Oct 1875 (H1032); O05560 (8CBB-PF6Z), Dr. "Nutin Hegenauer", naturalized Buffalo Co., Wis., 28 Oct 1879Elgg 1675–1735, Altstetten 1665, Aadorf 1728, Uster 1763–1767, Basel 1841–1856, St. Gallen 1886 (the Igis Georg × Elisabeth Flütsch), Schiers 1875; US from 1879. Also a separate German surname (Baden and Württemberg: Pfullendorf, Baisingen, Freiburg)
HegnaurindexedO04723 (6FZL-WM8R), Ursula, bapt. Effretikon Jan 1595, father Hans Hegnaur; O04352 (66VS-1T1X), Anna Barbara, bapt. Elgg 3 Nov 1782; O05489 (6X58-TKSC), Fred R., 1950 census, Greece, Monroe Co., N.Y., b. 1886 SwitzerlandEffretikon 1595, Elgg 1782–1788; in the US 1880–1950 (the Rochester Seengen family; Christian and Cornelia in Richland Co., Ohio, 1920; Henry in Calaveras Co., Calif.; Find a Grave "Leonard Hegnaur", O05365). A common OCR form in newspapers
HegneuerindexedO04653 (6F8W-BPJV), Ludwig × Johanna Sandmeier, m. Baden AG 4 Aug 1826 (his parents Jacob × Maria Häfeli); O04643 (6F8S-LL2L), Ursula, bapt. Winterthur 22 Aug 1645Baden AG 1826; Winterthur 1645 (9 entries)
Hegnauerin / Hegenauerinindexed (feminine)O04816 (FVJF-2WP), Barbara Hegnauerin × Heinrich Frey, m. Aawangen TG 20 Feb 1714; O04618 (6F88-ZNC5), Maria Hegnauerin, bur. Aesch LU 8 Mar 1739; O04332 (66VM-VJGV), Elsbeth Hegenauerin, mother at a Michel baptism, Igis (H1441)The feminine -in form of the 16th–18th centuries: Aawangen 1714, Dussnang TG 1735, Aesch 1739, Igis 1720s–1734 (Jacob's sister Elsbeth, wife of Conradin Michel). Compare Hagenauerin, Fehraltorf 1636
Hegner (at Elgg)indexed; cautionO04271 (66V7-KCBF), Dorothea, m. Elgg 10 Jul 1569; O04194 (66V3-927Q), Urich, bapt. Elgg 6 Dec 1573Elgg only: baptisms 1573–1624, marriages 1569–1609, burials 1610–1629 (37 entries), the years between the Hegnouwer and Hegnauwer entries. Hegner is also a separate surname (the Winterthur, Kloten and March Hegner, about 3,000 entries 1550–1700): outside Elgg treat it as a different name
Hegnorer / Hegnorenindexed; to verifyO05132 (6F8H-S3SK), Joannes Hegnoren, bapt. Fehraltorf 6 Aug 1548, father Jacob; O05063 (6F84-R1JR), Margaretha Hegnorer, bapt. Fehraltorf 2 Mar 1550, father JacobFehraltorf 1548–1550, the parish next to Hegnau (Volketswil). If the images confirm the name, these are the earliest church-book entries of it. Nearby Effretikon has Hegnaucker/Hegnacker/Hegaucker (1559–1624), also to verify
Hegnaner / Heguanerindex errorO05671 (KDYT-YG9), Luzius "Hegnaner", pension 1890 (H0001); O05870 (X6ZK-NDD), Christian "Hegnaner", d. Columbus, Ohio, 17 Feb 1926 (H0418); O04718 (6FZL-JZGL), Laura Elwira "Heguaner", bapt. St. Gallen 18 Jan 1885 (a daughter of the Igis Georg)u read as n (or n as u). Hegnaner: about 50 US index entries 1875–2002, nearly all known study families (Missouri, Chicago, Newark, Rochester, Ohio). Heguaner: Baden AG 1870–1872, St. Gallen 1885–1891. Not a real spelling
Hamauer / Hegrnauer / Hegeauerindex errorO04329 (66VM-V1YK), "Jacob Hamauer", father at the baptism of Nuttin, Igis 1725; O04944 (66VM-KV5T), "Jacob Hegeauer", Igis 1731; O04324 (66VM-J3C8), "Jacob Hegrnauer", Igis 1734 (all H1434)Single misreadings of the Igis founder Jacob's name. Hegeauer (a dropped n) also at Zürich 1767–1770 and Uster 1826. Not real spellings
HegnäuercandidateFamilySearch indexes (17)Probably transcription; check images
Hegnaùer / HegnaüercandidateFamilySearch indexes (18)Probably transcription
candidateTranscription errors and anglicized spellings go here until confirmed

Search tips: use wildcards where the site allows them (Heg*auer, H?gnauer). FamilySearch has an exact-name toggle. Ancestry has "Sounds like" and Soundex options. Newspapers.com OCR often misreads letters, so also try Hegnaur, Hegnauor and Hegnauer's. FamilySearch ignores umlauts (Hegnäuer returns the Hegnauer set), and its wildcards (Hegna*, Hagena*) also bring in unrelated look-alike names (Hagenau, Hagenacher, Hagenaider …): those rows are marked "OUT OF STUDY" in the notes of data/occurrences.csv.

Other places that might give the same or a similar name

PlaceOld formsCould it give Hegnauer?What name it actually gaveVerdict
Hegnau, Volketswil ZHHegenowa c.1150, Hegenowe 1244, Heginoͧ 1267 … (ZSNB)YesHegnauer (Hegnower, Hegenower, Hegnouwer, Hegnauwer…)Accepted
Hegne, Allensbach (near Konstanz)Hagene, Hagny 843 (in a 12th-century forgery); Hagin 877; Hegne from 1318; probably from Old High German hagan, "thorn bush" (LEO-BW, Hegne)No: the name never had -au, so it could give only Hegner/HegenerNamed as one possible source of Hegener (Brechenmacher, via DFD), which the DFD itself thinks unlikelyRejected. Hegne was never "Hegnau"
Hagnau am Bodensee (near Meersburg)Hagenowa, 10th c. (Förstemann II, 1913, Haganowa no. 5); Hagenovo 1152, explained as "personal name + Au"; local nobles 1209–1324 (LEO-BW)No: the first vowel is a (no umlaut)Hagnauer/Hagenauer. The editors of the Habsburg Urbar asked whether a Winterthur family "von Hagnau" (Heinrich von Hagnowe, 1331) came from here (QSG 15/2, index). DHBS IV has a "Loy de Hagnau près Meersburg"Possible source of some Swiss Hagnauer; not of Hegnauer
Haguenau / Hagenau (Alsace)Hagenowe 1144, Hagenova 1189 (Förstemann II, 1913, Haganowa no. 2, citing Clauss's Alsatian gazetteer; the 1872 edition places this Haganowa north of Strasbourg)NoHagenauer, Haguenauer (the sculptors Niklaus and Friedrich Hagenauer; Jewish families). Hagenauwer was the ordinary adjective for things from the town, as in "Hagenauwer mas und gewicht", its measures and weights, in a Lower-Alsace legal custom (Grimm, Weisthümer I, p. 618f.)Rejected for Hegnauer. It is the familiar name a clerk might write instead (section 6)
Hagenau places in Bavaria and Austria (west of Freising; near Leutershausen; one probably in Austria)Haganowa, Haginowa 1000 (Förstemann II, 1872, Haganowa)NoBavarian and Austrian Hagenauer (for example the Salzburg family)Rejected
Hegenau, Rot am See (Württemberg)(not checked)It could give HegenauerNamed in the DFD, after Brechenmacher, as a possible source of HegenerA possible home of some German Hegenauer (Baden, Württemberg); not examined; not the Swiss line
Swiss field and hamlet names Hagnau / HagenauHagnau: Birsfelden, Eptingen and Kilchberg BL; Däniken, Dulliken, Gretzenbach, Lostorf, Obergösgen and Schönenwerd SO; Merenschwand AG (hamlet); Beckenried NW; Schenkon LU; Neerach ZH (in der Hagnow, 1430). Hagenau: a farm at Bütschwil-Ganterschwil SG; field names at Oberuzwil and Zuzwil SG (ortsnamen.ch)No (a)Could explain the separate Hagnauer/Hagenauer families: the Aarau Hagnauer (Hagnau fields lie a few km from Aarau in the Niederamt SO), and the Catholic Hagenauer of St. Gallen and Oberbüren (Hagenau at Oberuzwil and Zuzwil, near Oberbüren). Unproven, noted only as leadsNot Hegnauer
Hegisau, Fischenthal ZHHegisawa, "Au des Hegi" (Meyer 1849, no. 606)No: it would give Hegisauer—Rejected
The "sunken town of Hegnau" in the Kulm valley (Aargau)Legend only: a lost town Hegenau between Oberkulm and Zetzwil, said to have given its name to "the numerous Hegnauer family of the Kulm valley" (Rochholz, Schweizersagen I, 1856, nos. 7 and 52, pp. 7, 61–62)——Rejected as an origin. No such place is recorded. It is useful all the same: Hegnauers were numerous in that part of Aargau by 1856, 7 km west of Seengen, and local people already kept the Hagnauer apart as a different family, "named after an Alsatian castle"

The lords von Hegnau and the surname: related or not?

What the lexicons say.

  • HLS. The lords of Hegnau are recorded in the 13th century and were probably ministeriales (knights in a lord's service) of the counts of Rapperswil (HLS Volketswil).
  • DHBS, entry "Hegnau, von, et Hegnauer". The Dictionnaire historique et biographique de la Suisse (1928, the French edition of the HBLS) treats "von Hegnau" and "Hegnauer" as one family (DHBS IV; the German HBLS IV, p. 112, has the same text):
    • ministeriales of the Habsburgs, recorded in the village from 1282;
    • citizens of Baden (Aargau) in the 14th century and of Zürich in the 15th;
    • found at Fehraltorf in the 17th century and at Uster castle in the 18th and 19th;
    • they still held some rights of jurisdiction over Hegnau in the 16th century, but could no longer keep up their rank. They left their castle before 1553, settled in the village and became farmers.
    • The entry adds that the Zürich and Baden Hagnauer and Hegnauer used the same first names and were confused early on.
    • Members named: Johannes (1331–1376), a squire and citizen of Baden; his son Wilhelm (1363–1413), who collected the Habsburg levy of 1388–89 in Aargau; Johannes, who became a citizen of Zürich on 22 Nov 1440; and Jakob, lord of the bailiwick of Hegnau in 1522, who was killed at Kappel in 1531 (the bailiwick passed to the Trüb family in 1535).
    • Their arms were gyronny of blue and gold, and the village of Hegnau still bears them (DHBS IV, "Hegnau").
    • The DHBS says plainly that it is not known whether this family is related to the Hegnauers of Elgg and Seengen.
  • The Habsburg Urbar. Its editors call the Hegnauers "Austrian service people from Hegnau". They print the tax register of 1388–89 that Wilhelm Hegnauer, the collector, wrote himself (QSG 15/2, introduction and index).
  • Sempach, 1386. The lists of those who fell on the Austrian side include a "Hans von Hegnow" or "der Hegnouwer". Some chronicles write him "Hans von Hagnow(e)", "Hagnouw", "Hagnauwer" or "Hagenauer" (Liebenau 1886; examples in section 6).

The two statements agree. The HLS's lords of the 13th century (Rapperswil ministeriales) and the DHBS's family (Habsburg ministeriales from 1282) are compatible: the HLS speaks of the 13th century and the DHBS of the Habsburg period after it.

Conclusion.

  1. Same name, same place. The lords' family itself came to be called Hegnauer: Wilhelm von Hegnow of 1399 is Wilhelm Hegnöwer in 1413. So the surname was borne by the lesser nobility of Baden and Zürich in the 1300s and 1400s.
  2. But the surname did not need the lords. Ordinary villagers were also called "von Hegnau": Bela in 1366, Fren Schultheissin in 1375 and Hans Gul in 1483 (Hegnauers in the Zürich tax books, 1366–1470; ZSNB). Anyone who left the village could become "the Hegnauer" in his new home. The man at Pfäfers "dictus Hegnower" in 1282 was plainly not one of the lords.
  3. No record ties the study's lines to the noble family. The DHBS itself leaves the question open.
  4. Two leads worth following.
    • (a) Volketswil. The DHBS says the family settled in Hegnau as farmers before 1553. The Volketswil register (Hegnau's parish) has Hegnauers from 1590, two years after it begins, until 1736. They are written Hegnauwer and Hegneüwer, and the study had wrongly filed them as "Schwyz" (jacob-origin note, item 4). Descent from the lords' family is the simplest explanation for a family called Hegnauer living in Hegnau itself. It is a hypothesis, not a finding.
    • (b) Fehraltorf and Baden. The DHBS puts the family at Fehraltorf in the 17th century, where the study has "Hegnorer" baptisms of 1548–1550 and a "Hagenauerin" in 1636. The Zürcher Familiennamen has a Magdalena Hegnauer of Mesikon (Fehraltorf) in 1628 (p. 174). The family's 14th-century home at Baden is the nearest recorded Hegnauer presence to Seengen before the church books begin (Baden is 29 km from Hegnau and about 18 km from Seengen). Both are possible routes, and both are unproven.

What is still uncertain, and how to settle it

  1. The c.1150 document. Read Schnyder's 1963 edition (ZUR, nos. 14 and 16) to confirm that the form belongs to this Hegnau. Hegenowa is also a medieval spelling of Hagenau in Alsace (Hegnau). The ZSNB's dating to "mid-12th century" and its context in Zürich sources make this Hegnau very likely.
  2. Two books seen only in snippets.
    • Zürcher Familiennamen (1994), p. 85: its full entries for Hegnauer and Hegner, including its note on meaning and on what it means by "H. de Hagino" (1259). The place-name book says every old form of the village has e, so a Hagino would be unusual.
    • Rätisches Namenbuch III, p. 565: the full entry. Both are in Swiss libraries.
  3. Reference works not read directly. Brechenmacher, Bahlow, Duden Familiennamen (Kohlheim) and Gottschald were known only through the DFD's citations; they are not online. The DFD has no article yet for Hegnauer, Hagenauer or Hegenauer: its Hagener article refers to a "Hagenauer 1" that has not been published. The Idiotikon's surname portal, familiennamen.ch, has citizenship data for Hegnauer but no etymology article.
  4. Hegner. Whether the Winterthur Hegner are an early branch of the Elgg Hegnauers, which would make "Hegner" partly the same name, or a family from Hegi. The HLS says "Hegi–Elgg area" but gives spellings with -ow-, which point to -au.
  5. The DHBS's family history (a castle left before 1553; Fehraltorf in the 17th century; Uster castle in the 18th and 19th) is 1920s work that cites Merz, the Zürich city books and the anniversary book of Uster. It should be checked against the Volketswil and Fehraltorf registers before anyone relies on it.
  6. Igis: the test in section 6, and the register images already listed in the jacob-origin note.
  7. Y-DNA: one direct male-line Hegnauer from each of Elgg or Uster, Seengen and Igis. This is the only test of "one ancestor or several".