Complex sentence: Another legend has it that the Ottoman sultan Selim II invaded the island just to acquire Commandaria; also that the grapes used to make this wine were the same grapes exported to Portugal that eventually became famous as the source of port wine.
Split into simpler sentences: Another legend has it that the Ottoman sultan Selim II invaded the island just to acquire Commandaria. And the grapes used to make this wine were the same grapes exported to Portugal that eventually became famous as the source of port wine.