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William, Margrave of Hachberg-Sausenberg

Margrave of Hachberg-Sausenberg
The basics
About
Date of birth
Date of death Aug 15, 1482
Family
Children: Rudolf IV, Margrave of Hachberg-Sausenberg Hugo, Margrave of Hachberg-Sausenberg
Father: Rudolf III, Margrave of Hachberg-Sausenberg
Brother(s): Otto III of Hachberg
Authority VIAF id
The details
Biography

Margrave William of Hachberg-Sausenberg (11 July 1406 - 15 August 1482) was the son of Margrave Rudolf III of Hachberg-Sausenberg and Anne of Freiburg-Neuchâtel. He ruled from 1428 to 1441, and abdicated on 21 June 1441 in favor of his infant sons, Rudolf IV and Hugo. As they ware still infants, his cousin Count John of Freiburg-Neuchâtel took over the government as regent.

Marriage and issue

William married Elizabeth, daughter of the Count William VII of Montfort-Bregenz. His wife's relatives intervened because of his lavish lifestyle and he had to promise not to mortgage any assets from her dowry without their consent. Nevertheless, his lifestyle led to a divorce in 1436. They had at least three children: two sons, Rudolf IV and Hugo, who succeeded him, and a daughter, Ursula, who became the second wife of Count James Truchseß of Waldburg.

As William was constantly in debt and the pressure of his creditors increased, he found eventually that he could only keep his ancestral lands in the family by abdicating in favour of his sons.

Construction activities

After his father had expanded Rötteln Castle, William dedicated himself to the expansion of Sausenburg Castle.

Expansion of the country's sovereignty

He bought in 1432 the low justice in Efringen, Kirchen, Eimeldingen, Holzen and Niedereggenen.

On 3 November 1437, Margrave William of Hachberg, in his capacity as bailiff, gave Cüne am Bühel rights to Waldshut, Guardian of the Abbess of Königsfelden Abbey, the third part of the grain tithe to Birkingen, the tithe to Eschbach and the wine tithe on Schönenbühel to Waldshut. He had boughts these rights from Albrecht Merler, who lived at Kadelburg. It is not known when he bought these rights.

Diplomatic services

Via his cousin John of Freiburg-Neuchâtel, William gained access to the court of the Duke of Burgundy in Dijon. During the Council of Basel, he was called upon as mediator between Austria and Burgundy and later as mediator between Burgundy and France. In 1432, the Protector of the Council, Duke William III of Bavaria appointed William of Hachberg as acting head. In 1434, Duke Philip III of Burgundy, appointed him as councillor and Chamberlain.

In 1437, the Duke of Austria appointed him governor of the Austrian possessions in the Sundgau, Alsace and Freiburg. As governor of Further Austria, he was involved in the war between Emperor Frederick III and the Old Swiss Confederacy. After the Swiss defeated the Austrians in the Battle of St. Jakob an der Sihl in 1443, the Emperor sent William to King Charles VII of France to plea for help. France sent 40000mercenaries, the so-called Armagnacs.

The contents of this page are sourced from a Wikipedia article. The contents are available under the CC BY-SA 4.0 license.
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