He succeeded his father around 1288 as Count of Zollern.
Friedrich VI kept the County of Zollern, while his younger brother received the Lordships of Schalksburg and Mühlheim.
In 1296 Friedrich sold some land to the Bebenhausen Abbey.
In 1281, Friedrich married Kunigunde (1265–1310), the daughter of Margrave Rudolf I of Baden, with whom he had the following children:
This article about a member of the German nobility is a stub.