Career
His full title was Yuri I, King of Ruthenia, Grand Prince of Kiev, Volydymyr-Volhynia, Halych, Lutsk, Dorohochyn. In 1264-1301 he was a prince of the Duchy of Belz. He was a son of Lev Daniilovich (Knyaz of Galich, 1269–1301) and Constance of Hungary, a daughter of King Béla IV and Maria Laskarina.
Sons
Mykhailo (1283–1286) (first marriage)
Andrew of Galicia, Prince of Ruthenia (1308–1323)
Lev II, Prince of Ruthenia (1308–1323)
Dmytro, Lord of Ruthenia (1340-1349)
Daughters
Maria, Princess of Ruthenia, (died 11 January 1341).
Married Trojden I of Masovia
Anastasia (parentage uncertain. Died 1364–1365). Married Alexander I of Tver (died 1339).