Andrei of Polotsk [SEP] mother
Andrei of Polotsk
Andrei of Polotsk (, , , ca. 1325 – 12 August 1399, in the Battle of the Vorskla River) was the eldest son of Algirdas, Grand Duke of Lithuania, and his first wife Maria of Vitebsk. He was Duke of Pskov (through his deputy Yuri, 1342–1348) and Polotsk (1342–1387). As the eldest son of the Grand Duke, Andrei claimed his right to the throne after his father's death in 1377. Algirdas left Jogaila, his eldest son with his second
had been modified by mutual agreement between the brothers.
In 1386, as part of the Christianization of Lithuania and union between Poland and Lithuania, Švitrigaila together with his brothers was baptized in the Roman Catholic rite in Kraków. His baptismal name was Bolesław.
Despite numerous power struggles in Lithuania, including rebellion by Andrei of Polotsk, conquest of the Principality of Smolensk, and the Lithuanian Civil War (1389–92), Švitrigaila does not appear in politics until 1392. After the death of his mother Uliana of Tver, Jogaila