// todo need optimize like in event.jsp. Add indexing or not indexing this page. Rule of Frederick Barabossa HRE (13 Jan 1152 Jahr – 29 Dez 1190 Jahr) (Band der Zeit)

Rule of Frederick Barabossa HRE (13 Jan 1152 Jahr – 29 Dez 1190 Jahr)

Beschreibung:

Just like William the conquerer required vassals to take an oath of alliance and not to attack each other. couldn't unify the HRE like France and England would be around this time.