The Lithuanian Army spent the winter in Brest and, the second week after Easter, marched against the Principality of Kiev.

In the 1880s, Ukrainian historian Volodymyr Antonovych was the first to critically evaluate the chronicles and dismiss the campaign and battle as fiction.

[7] The Kingdom of Galicia–Volhynia attracted Gediminas' attention early on; he attacked Brest in 1315 and arranged a marriage between his son Liubartas and Euphemia, daughter of Andrew of Galicia.

[9] There was an attack on Lithuania by the Golden Horde in 1325; historians Feliks Shabuldo and Romas Batūra interpreted it as a direct reprisal for the Lithuanian expansion.

The brothers did not have a male heir and were succeeded by Bolesław Jerzy II of Mazovia, son of their sister Maria, and not by Liubartas.

[12] Bolesław Jerzy was poisoned in 1340 bringing about the prolonged Galicia–Volhynia Wars that split the territory between the Grand Duchy of Lithuania and Kingdom of Poland.

In a letter to Pope John XXII, Polish King Władysław I the Elbow-high lamented that the death of Andrew and Leo left Poland vulnerable to an attack from the Golden Horde, and made no mention of a Lithuanian aggression.

[7] The case for a simple mistake is bolstered by the fact that his brother's name is correctly recorded as Leo II of Galicia.

Historians had suggested that the three names were borrowed from an earlier campaign: the Galician–Volhynian Chronicle recorded a 1274 battle between the Lithuanians and Vladimir of Volodymyr, Leo I of Galicia, and Roman of Chernihiv and Bryansk at Drahichyn.

The Lithuanian Chronicles mention that he escaped to the Principality of Ryazan where he married a daughter of the local prince and succeeded to the throne.

[15] The genealogy of the Shilovskys (ru:Шиловские), a boyar family from Ryazan, mentioned that they fled Kiev with Stanislav.

[18] His son Ivan Olshansky was a prominent noble in the Grand Duchy and, in 1399, became viceroy in Kiev after Skirgaila's death.

He was stopped by Prince Fiodor of Kiev, a Tatar basqaq (tax collector), and fifty warriors.