<Ul> <Li> Nicaea </Li> <Li> Epirus / Thessalonica </Li> <Li> Trebizond </Li> <Li> Theodoro </Li> </Ul> <Li> Epirus / Thessalonica </Li> <Li> Palaiologan era <Ul> <Li> Despotate of the Morea </Li> </Ul> </Li> <Ul> <Li> Despotate of the Morea </Li> </Ul>

What bodies of water mark the eastern and western boundaries of the umayyad empire