Ivan Asen II and a mistress, in an arranged marriage, part of a pact. There is no information of them having any children. Manuel may have had a daughter named Helena, who married Guglielmo I da Verona, triarch of Euboea, father of Guglielmo II da Verona. References Sources 1180s births 1240s deaths 13th-century Byzantine people Manuel Medieval rulers of Thessaly Manuel Despots (court title) 13th-century rulers in Europe