Agrippina's year of birth is unknown. In sources the daughter of Algirdas from his first marriage is referred to either as Agrippina and Maria, but researchers believe that both names belonged to the same woman, referred to either under a princely name or under a baptismal one [3, p. 434].
Algirdas actively used marriage diplomacy to spread his power. The marriage with the daughter of the Vitebsk prince, Maria, brought him Vitebsk. The arranged wedding of Lobart and Olga Rostovskaya strengthened his positions in the Rus principalities. By the marriage of his daughterMaria of Vitebsk, Algirdas continued to spread his influence over the Rus lands. As E. Gudavičius notes, by the mid-1350s Moscow was increasingly surrounded by allies or satellites of Lithuania [2, p. 66].
In 1354 Agrippina was married to Boris Konstantinovich, Prince of Suzdal-Nizhny Novgorod [I, 204]. In marriage she had at least two children: sons Daniil and Ivan. Ivan appears in the sources under the nickname "the Big Bow". Apparently, from a very young age he was involved in the intricacies of political struggle: at the age of twelve he accompanied his father to the Horde, three years later he already visited the khan alone at the request of Boris Konstantinovich.
The confrontation with the Grand Prince of Moscow, Vasily Dmitrievich and the struggle for Nizhny Novgorod for the family of Boris Konstantinovich ended tragically. In 1392, Vasily organized a punitive campaign against Nizhny Novgorod, took the city away, and ordered the prince's family to be separated into cities [II, 254; 3, p. 434]. Agrippina died in 1393 in captivity in Suzdal, where she was sent with her husband. Boris Konstantinovich himself died either the same or the following year [II, 254]. It is not known when his sons were released [3, p. 482].
I. PSRL. T. X. Letopisnyi sbornik, imenuemyi Patriarshei ili Nikonovskoi letopis'iu. (1177–1362 gg.) M., 2000.
II. PSRL. T. XI. Letopisnyi sbornik, imenuemyi Patriarshei ili Nikonovskoi letopis'iu (1362–1424 gg.) M., 2000.
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