House of Kyburg

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House of Kyburg
Wappen Kyburgerr.svg
Country Holy Roman Empire
Parent house von Dillingen
Founded 1180
Founder Hartmann III von Kyburg
Final ruler Hartmann V von Kyburg
Dissolution 1263

The House of Kyburg was family of Grafen or counts from Zürich in Switzerland. The family was one of the three most powerful noble families in the Swiss plateau beside the Habsburg and the House of Savoy during the 11th and 12th Centuries. With the extinction of the male line in 1263, Rudolph of Habsburg laid claim to the Kyburg lands and annexed them to the Habsburg holdings, which marked the beginning of the Habsburg rise to power.

History[edit]

Early history[edit]

The coat of arms of the Grafen von Kyburg from the Stumpfschen Chronik of 1548
Major noble families in Switzerland around 1200. The house of Kyburg is in yellow

The first line of counts of Kyburg were influential in local politics during the 1020s but the male line died out in 1078. Kyburg castle, southeast of Winterthur (in the modern canton of Zürich), passed on to the Swabian counts of Dillingen.[1] Through the marriage of Hartmann von Dillingen († 1121) with a certain Adelheid the House of Dillingen acquired the old Kyburg possessions as well as territorial claims in the Thurgau. The exact origin of Adelheid is unclear. She is either the granddaughter of the Count of Grüningen-Winterthur or from a cadet branch of the Winterthur family, the Counts of Nellenburg. She might also be the daughter of Adalbert II von Winterthur, the last knight from Winterthur, who died in 1053 at the Battle of Civitate against the Normans.

Expansion of the Kyburg lands[edit]

The Kyburg land continued to be part of the possessions of the House of Dillingen until the grandson of Hartmann von Dillingen, Hartmann III († 1180), split the Dillingen lands.[2] Adalbert received the Swabian territories, while Hartmann III von Dillingen got the Swiss lands and became Hartmann I of Kyburg. The House of Kyburg were vassals of the Duke of Swabia, who was of the House of Hohenstaufen and would become the Kings of Germany from 1138-1254. When the House of Lenzburg died out in 1172/73, the Kyburgs together with the Hohenstaufen and Zähringen split the Lenzburg possessions between them. The Kyburg family acquired the allodial title to the Vogtei of Windegg or Gaster (today 7 municipalities in the See-Gaster Wahlkreis of St. Gallen) and land around Baden. Later additional Lenzburg territories, the Schänis Abbey and Beromünster, were also acquired by the House of Kyburg.[3]

In 1180 the family began to consolidate their power. They founded the cities of Diessenhofen and Winterthur to help spread their power. They also appointed many of the Lenzburg, and later Zähringen, vassals to be unfree knights or Ministerialis for the Kyburg family.

When the Zähringen family died out in 1218, the Kyburgs grabbed another chance to expand. Anna von Zähringen, the sister of the last Duke of Zähringen, Berthold V, was the wife of Ulrich III von Kyburg (†1227). From the Zähringen line the Kyburgs acquired land west of the Rhine and in Burgundy including the cities of Fribourg, Thun and Burgdorf as well as estates in the canton of Zurich. However, the House of Hohenstaufen, the family of the Holy Roman Emperors, refused to support the Kyburg claims on the city of Zurich and in 1226 on the Abbey of St. Gall. As a result, they turned increasingly away from the Hohenstaufens and in 1243 and were one of the mainstays of the pro-Pope and anti-Holy Roman Emperor Party.

Around 1220 they started to make claims on property and rights that had unclear ownership and was near property that they already owned. In 1225 they founded a burial site for the Chorherrenstift Heiligberg in the center of the property of the former Freiherr von Weisslingen at Winterthur, and in 1233 founded Töss Abbey west of Winterthur. Both sites were endowed with property that they had taken from the Weisslingen and Rossberg families. These two properties served to define the borders between the Kyburg and Rapperswil families.[3]

At the same time the Kyburg family attempted to strengthen themselves through marriage. Hartmann V, a grandson of Ulrich III was engaged to Anna of Rapperswil in 1227. His uncle, Hartmann IV, called the Elder, married Margaret of Savoy while his sister Heilwig, the future mother of King Rudolf I von Habsburg, married Albert IV of Habsburg

Even though the family continued to found cities and expand, they were declining in power. In 1230 they founded Zug and Baden, then Frauenfeld, Aarau, Lenzburg, and Mellingen. In 1250 they founded Sursee, Weesen and the fortified towns of Kyburg and Laupen. The last two were Richensee and Huttwil which they lost shortly thereafter.

Neu-Kyburg[edit]

Coat of arms of Neu-Kyburg, replacing the black field of the original coat of arms with the red of the House of Habsburg.

In 1250/51 the childless Hartmann IV gave the western part of the property with the center of Burgdorf to his nephew Hartmann V. As a result, Hartmann V, who was supported by the Habsburgs, came into conflict repeatedly with the growing city-state of Bern. His uncle had to step in often to keep the peace. When Hartmann V died in 1263, Count Rudolf von Habsburg became the guardian of Hartmann's daughter Anna, and also took over the administration of the western section. One year later, after the death of Hartman IV, Rudolf stepped in to control the eastern half as well. Though this brought him into conflict with the claims by the widow Margaret of Savoy and her family.

Anna, daughter of Hartmann V, married Eberhard I of Habsburg-Laufenburg. This marriage was intended to secure Habsburg interests in Aargau (Argovia) against Savoy. The son of Eberhard and Anna, Hartmann I (1275–1301) again called himself "of Kyburg". His line came to be known as that of Neu-Kyburg or Kyburg-Burgdorf, persisting until 1417.

In 1322, the brothers Eberhard II and Hartmann II started fighting with each other over who would inherit the undivided lands. The fighting led to the "fratricide at Thun Castle" where Eberhard killed his brother Hartmann. To avoid punishment by his Habsburg overlords, Eberhard fled to Bern. In the following year, he sold the town of Thun, its castle and the land surrounding Thun to Bern. Bern granted the land back to Eberhard as a fief.[3]

The decline of Neu-Kyburg began with a failed raid by Rudolf II on Solothurn, on 11 November 1382. The ensuing conflict with the Old Swiss Confederacy is known as the Burgdorferkrieg (also Kyburgerkrieg). Bern took the opportunity to assert its interests in Aargau against the Habsburgs, and after the Bernese laid siege to Burgdorf, Neu-Kyburg was forced to concede an unfavourable peace. Bern bought Thun and Burgdorf, the most important cities of Neu-Kyburg, and their remaining towns passed to Bern and Solothurn by 1408. The last of the Neu-Kyburgs, Berchtold, died destitute in Bern in 1417.

Family tree of the Kyburg family[edit]

 
 
HOUSE OF DILLINGEN
 
 
 
 
 
 
 
 
 
HOUSE OF LENZBURG
 
HOUSE OF ZÄHRINGEN
 
 
 
HOUSE OF HABSBURG
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Hartmann I of Dillingen
† 1121
 
Adelheid of Winterthur
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Hartmann II
† 1134
 
Ulrich
† 1127
Bishop of Konstanz
 
Adalbert
 
Richenza
of Lenzburg-Baden[4]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Hartmann III
before 1152
† 1180[4]
 
Richinza of Lenzburg
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Ulrich III of Kyburg
before 1183
† 1227[5]
 
 
 
Anna of Zähringen
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Ulrich, Bishop of Chur
Bishop 1233-1237
 
Alice of Lothringen
 
Werner
† 1228 on Crusade
 
Hartman IV
1213-1264[6]
 
Margaretha of Savoy
†1283
 
Hedwig of Kyburg
 
Albert IV, Count of Habsburg
† 1239
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Anna of Rapperschwyl
†1253
 
Hartmann V
1218-1263
 
Elizabeth of Chalon[7]
 
 
 
 
 
 
 
 
 
Rudolph of Habsburg
1218–1291
King of the Romans 1273-1291
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Werner
†infant
 
 
Anna
 
Eberhard von Habsburg-Laufenburg
1227-1284
 
 
 
 
 
 
Habsburg Kings and Holy Roman Emperors
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Counts of Neu-Kyburg
or Kyburg-Burgdorf
line extinguished 1418

sources:[8][9]

Family tree of the Neu-Kyburg family[edit]

 
Anna
 
Eberhard von Habsburg-Laufenburg
1227-1284
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Margaretha
married
Dietrich VII of Cleves
 
Eberhard I
†before 1290
 
Peter
illegitimate
Vogt of Oltingen
 
Hartmann I
c.1275-1301
 
Elisabeth of Freiburg
c.1280-1322
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Margaritha of Neuchâtel
 
Hartmann II
†1322
murdered by Eberhard II
 
Eberhard II
†17 April 1357
 
Anastasia of Signau
c. 1313-1382
 
Katherina
married
Albrecht of Werdenberg
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Eberhard III
 
Eberhard IV
†14 July 1395
 
 
Anna of Nidau
 
Hartmann III
 
Berchtold
†1417
Last of the Neu-Kyburg line
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Ego II
sold his title in 1406
†c.1415
 
Rudolph II
†1383
 
 
 
 

sources:[3][9][10][11]

References[edit]

  1. ^ Encyclopaedia Britannica online accessed 11 August 2009
  2. ^ Genealogy of the House of Kyburg (German) accessed 13 August 2009
  3. ^ a b c d von Kyburg in German, French and Italian in the online Historical Dictionary of Switzerland.
  4. ^ a b Kyburg, Hartmann III. von in German, French and Italian in the online Historical Dictionary of Switzerland.
  5. ^ Kyburg, Ulrich III. von in German, French and Italian in the online Historical Dictionary of Switzerland.
  6. ^ Kyburg, Hartmann IV. von (der Ältere) in German, French and Italian in the online Historical Dictionary of Switzerland.
  7. ^ Pipitz, pg.69
  8. ^ Genealogy of the Kyburg line
  9. ^ a b Pipitz, Franz Ernst (1839). Die Grafen von Kyburg. Weidmann. 
  10. ^ Genealogy of Hartmann I accessed 22 February 2013
  11. ^ Bichsel, Adolf (1899). Graf Eberhard II. von Kyburg. (1299-1357): Ein Beitrag zur Geschichte de Grafen von Habsburg-Kyburg (in German). Bern: H. Körber. pp. 118–119.  Some family members omitted for clarity.
This article incorporates information from the equivalent article on the German Wikipedia.

External links[edit]