According to some historians he died together with his brother Lev II battling the Mongol-Tatars or
Lithuanians while defending
Berestia. Both king Andrew and his brother Lev II were much respected in the west. In May 1323, the Polish king Władysław I the Elbow-high in his letter to the
Pope wrote with regret: "The two last Ruthenian kings, that had been firm shields for
Poland from the
Tatars, left this world and after their death Poland is directly under Tatar threat." After their death the line of direct descendants of
Roman Mstyslavych broke and the Galician state remained without a dynasty. Galician boyars (nobility) attempted to rule the state themselves. That perhaps was the reason that they sought the protection of the Tatars, which Władysław I the Elbow-high became afraid of. But soon more conservative elements took hold among the boyars and the Galician throne was given to the
Mazovian duke
Boleslaw Trojdenowicz (related to the deceased royal brothers through marriage to their sister Maria), who took the name
Yuriy II and who ruled Galicia from 1323 until 1338. Boleslaw Treojdenowicz was married to Andrew's sister
Maria who ruled along with the husband. Her niece, Eufemia, heiress of Volhynia ruled in
Lutsk. == Family ==