Genealogie John Muijsers » Berthold iv van Zähringen (± 1125-1186)

Persönliche Daten Berthold iv van Zähringen 

• Er wurde geboren rund 1125.
• Beruf: hertog van Zähringen, rector van Bourgondie.
• Er ist verstorben am 8. Dezember 1186.
• Ein Kind von Koenraad I van Zähringen und Clementia van Luxemburg

Familie von Berthold iv van Zähringen

(1) Er ist verheiratet mit Heilwig van Frohburg.

Sie haben geheiratet rund 1159.

Kind(er):

1. Agnes van Zähringen  ± 1158-1239 
2. Berthold v van Zähringen  ± 1160-1218
3. Anna van Zähringen  1162-1226 

(2) Er ist verheiratet mit Ida van Boulogne.

Sie haben geheiratet rund 1186.

Notizen bei Berthold iv van Zähringen

Berthold IV, Duke of Zähringen (c. 1125 – 8 December 1186) was a Duke of Zähringen and Rector of Burgundy. He founded numerous cities, including Fribourg.

Berthold IV succeeded his father, Conrad I, in 1152 as Duke of Zähringen. Berthold also claimed the title of "Duke of Burgundy", which he had agreed upon with Barbarossa to receive after conquering the Cisjuran ("French") territories of Burgundy together and also helping him out in his Italian campaign in 1152. However, the conquest of Burgundy failed and in 1156 the Emperor Frederick Barbarossa instead married Beatrice, the daughter of the last Count of Burgundy of the House of Ivrea.[1] This interfered with Berthold's claims and Berthold was given the title of Rector of Burgundy and was made overlord over the Transjuran ("Swiss") parts of Burgundy, Geneva, Lausanne and Sion.

The rivalry with Duke Frederick IV of neighbouring Swabia caused him to fight on the side of Welf VI in the Feud of Tübingen (1164-1166). In 1173, he became overlord of Zurich.

An entry in the necrology of the Abbey of Saint Peter in the Black Forest reads Berchtoldus 4. dux de Zaeringen, officium cum 5 candelis. Depositio Iohannis Tüfer abbatis: "Berthold IV, Duke of Zähringen donated 5 candles for the memory of John the Baptist".[2]

Marriages and issue
Berthold IV was married to Heilwig of Frohburg, with whom he had three children:

Berthold V, the last Duke of Zähringen. After his death, the counts of Kyburg and Urach inherited the Zähringen possessions
Agnes, married to Count Egino IV of Urach — According to the necrology of Tennenbach Abbey, she was the daughter of Berthold V[3]
Anna, married to Count Ulrich III of Kyburg
Noot: 2e echtgenote: Ida van Boulogne

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