[2] In 1349, Algirdas, the grand duke of Lithuania, sent an embassy to the Golden Horde, proposing to the khan Jani Beg to form an alliance against Simeon of Moscow; this proposal was not accepted and the envoys, including Algirdas' brother Karijotas, were imprisoned and held for ransom.

The same year, Algirdas' brother Liubartas married Olga, daughter of Konstantin Vasilyevich of Rostov and niece of Simeon.

[2] According to the research of Polish historian Jan Tęgowski, Uliana was frequently pregnant during her union with Algirdas, giving birth to eight sons and eight daughters in about 24 years, though other sources provide different data:[2] It seems that the children, unlike children from Algirdas' first marriage with Maria of Vitebsk, were brought up in pagan culture.

Uliana, as dowager grand duchess, appeared in national politics and was involved in the Lithuanian Civil War,[5] as well as an unsuccessful attempt to wed Jogaila with Sophia, daughter of Dmitry Donskoy, and convert him to Eastern Orthodoxy.

An inscription was found that recorded Uliana's death on the feast of Saint Alexius, which is March 17 in Eastern Orthodoxy.