Oshin of Korikos

Oshin of Korikos (died 1329), son of the historian Hayton of Corycus, became regent for the young Leo IV after King Oshin died in July 1320, a death he was rumoured to have poisoned. He probably had the king's sister Isabella and two of her sons murdered as rivals.

He married first Margaret d'Ibelin, whose daughter Alice became Leo IV's queen, then King Oshin's widow Joan of Anjou. When Leo came of age, the king had both Oshin and Alice killed in 1329.