Simeon Uroš, nicknamed Siniša, was a self-proclaimed Emperor of Serbs and Greeks, from 1356 to 1370. He was son of Serbian King Stephen Uroš III and Byzantine Princess Maria Palaiologina. Wikipedia
Born: 1326, Kingdom of Serbia
Died: 1370 (age 44 years), Ioannina, Greece
Great-grandparents: Stefan Uroš I, Helen of Anjou, John I Doukas of Thessaly, and more
Children: John Uroš and Maria Angelina Doukaina Palaiologina
Partner: Thomais Orsini
Parents: Stefan Uroš III and Maria Palaiologina, Queen of Serbia
Grandchildren: Irene Preljubović and Angelina de Grecia