Nothing is known about Frederick's life before this event, but he proved to be Imperial ally throughout Henry's struggles against other Swabian lords, namely Rudolf of Rheinfelden, Frederick's predecessor, and the Zähringen and Welf lords.
Nothing is known about Frederick's life before this event. He proved to be Imperial ally throughout Henry's struggles against other Swabian lords Rudolf of Rheinfelden, and the Zähringen and Welf lords. This was namely. Rheinfelden was Frederick's predecessor.