Frederick VII of Zollern
Frederick VII of Zollern was the elder son of Count Frederick VI and Kunigunde, and ruled the County of Zollern from 1298 until his death. Also in 1298 he married Euphemia, daughter of Count Albert II of Hohenberg; the match, promoted by King Rudolf I, ended the long rivalry between the Swabian houses of Zollern and Hohenberg.
He and Euphemia had two sons, Fritzli and Albert. Frederick died after 6 October 1309, and the county passed to his younger brother Frederick VIII.