Van Aemstel Family - Gijsbrecht IV of Amstel

Gijsbrecht IV of Amstel

Gijsbrecht IV (1235-1303) became a vassal of Count Floris V of Holland. Gijsbrecht subsequently became one of most powerful men of Holland and finally decided that he wanted to be his own master. Together with other nobles, he kidnapped and unwantedly killed the count in 1296. The killing caused great outrage, the coup failed and Gijsbrecht lost his possessions and was banished.

After his banishment Gijsbrecht IV probably established himself in Oss in the Duchy of Brabant. Dutch professor Pim de Boer has found indications - though no conclusive proof - that Gijsbrecht was later involved in the foundation of Prussian Holland.