William, Margrave of Hachberg-Sausenberg
Margrave William of Hachberg - Sausenberg (* 1406, † August 15, 1482 ) was the son of Margrave Rudolf III. of Hachberg - Sausenberg and the Anne of Freiburg- Neuchâtel. He reigned from 1428 to 1441 and abdicated on June 21, 1441 in favor of his still under-age sons, Rudolf IV and Hugo, from. Count John of Freiburg- Neuchâtel took over as guardian the government.
The family
William married Elizabeth, daughter of Count William VII of Montfort- Bregenz. Because of his lavish lifestyle intervened the relatives of his wife, and he had to accept, to pledge any goods from her dowry without the consent of their relatives. Nevertheless led his life in 1436 for the separation. The sons of Rudolf IV (* 1426/27 ) and Hugo, and the daughter Ursula, who was the second wife of Jacob Steward of Waldburg are known.
After Wilhelm increasingly into debt and the pressure of his creditors grew, he was able to get his sons the tribe land only by his resignation of the regency.
Construction
After his father Rötteln Castle had expanded, Wilhelm devoted to the expansion of Sausenburg.
Expansion of the country's domination
He obtained in 1432 the lower courts in Efringen, churches, Eimeldingen, Lumber and Niedereggenen.
On November 3, 1437 gave bailiff Margrave William of Hachberg officio the Cüne am Bühel to Waldshut, Schaffner of the abbess of the monastery Königsfelden, the third part of the grain tithe to Birkingen, the tithe to Eschbach and wine tithe on Schönenbühel to Waldshut, which of the Margrave Albrecht Merler, had settled down to Kadelburg bought. When exactly he bought these possessions is not mentioned.
Diplomatic services
About his cousin John of Freiburg- Neuchâtel Wilhelm gained access to the court of the Duke of Burgundy in Dijon and gained a certain notoriety in circles prince. During the Council of Basel, he was once called as an intermediary between Burgundy and Austria and a second time to mediate between Burgundy and France. In 1432 he became the patron of the Council of Basel, appointed Duke William of Bavaria to his locum tenens. 1434 appointed him Duke Philip of Burgundy to his advice and chamberlain.
1437 he was in the service of the Duke of Austria bailiff in Sundgau, Alsace and Breisgau. As a front- Austrian bailiff William was in the war of the Emperor Frederick III. involved against the Confederates. After the Austrian defeat at the Battle of St. Jakob an der Sihl ( 1443 ) Wilhelm called on behalf of the Emperor of the French king Charles VII for help, and He sent 40,000 mercenaries known as the Armagnacs.