Shortly before, on 16 February 1506, the ʻBeilagerʼ of William’s sisters Elisabeth and Mary, who married the counts and Jobst I of Holstein-Schauenburg-Pinneberg repectively, was celebrated in Dillenburg with the greatest of festivities. The purchase of gold fabric for 747 guilders and silk fabric for 396 guilders at the trade fair in Mainz for these celebrations, as well as the unusually high total expenditure of 13,505 guilders in the accounts of 1505/1506, show that these weddings must have been splendid events. Soon after the wedding, William set up his own court at Dillenburg Castle.
