After escaping from the hands of Kunz von Kaufungen, who had abducted him together with his brother Ernest, he spent some time at the court of the emperor Frederick III in Vienna.
Setelah melepaskan diri dari Kunz von Kaufungen, yang telah menculiknya bersama saudaranya Ernst, ia tinggal selama beberapa waktu di kediaman Kaisar Friedrich III di Wina.