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. His father was a son of Daniel of Galicia
He married three times. His first wife was Yaroslavna of Tver (died ca. 1286). His second wife was Euphemia of Kuyavia (died 18 March 1308), daughter of Prince Kazimierz I of Kujavia, who in turn was the son of Konrad of Masovia, Kuyavia, Łęczyca, and Sieradz.
Daughters
Granddaughter