Uliana Alexandrovna of Tver was a daughter of Prince Alexander of Tver and Anastasia of Halych. She was the second wife of Algirdas, Grand Duke of Lithuania.
Wedding of Uliana and Algirdas from the Illustrated Chronicle of Ivan the Terrible
Algirdas was Grand Duke of Lithuania from 1345 to 1377. With the help of his brother Kęstutis he created an empire stretching from the present Baltic states to the Black Sea and to within 80 kilometres of Moscow.
Fragment from medal by Juozas Kalinauskas
Algirdas with Gediminas' Cap, painted in 1578
Algirdas (left) on the Millennium of Russia monument in Veliky Novgorod
Dmitry Donskoy writes letters asking for help against Algirdas during the Lithuanian–Muscovite War (1368–1372)