 On the other hand, his beliefs of a universal rule according to the "translatio imperii" concept collided with the existence of the Byzantine Empire, reflected in Henry's expansionist policies by the imposition of suzerainty over King Leo I of Armenia and King Aimery of Cyprus.In 1195 Henry's envoys in Constantinople raised claims to former Italo-Norman possessions around Dyrrachium (Durrës), one of the most important naval bases on the eastern Adriatic coast, and pressed for a contribution to the planned crusade.Upon the deposition of Emperor Isaac II Angelos Henry openly threatened with an attack on Byzantine territory.