His marriage to Elizabeth would also provide him with close family ties to Emperor Frederick I Barbarossa and the Welfs (like Barbarossa and Henry the Lion, Elizabeth was a grandchild of the Welf duke Henry IX of Bavaria).
His marriage to Elizabeth would also offer him close familial connections to Emperor Frederick I Barbarossa and the Welfs (like Barbarossa and Henry the Lion, Elizabeth was a descendant of the Welf duke Henry IX of Bavaria).