Ona Brazauskaitė akaberekwa musi wa 9 Gunyana 1883 mumusha weAnkščiai Parish yeRussian Empire kuna Jadwiga ("née" Michalowska, anozivikanwawo saJadvyga Mikalauskaitė) naGustavas Brazauskas (Gustaw Brzezowski). Vabereki vake vakasangana apo Brazauskas akaiswa mutorongo nokuda kwokubatanidzwa kwake mukumukira kwa1863 mukurwisana nokutonga kweRussia
nababa vaJadwiga. Mhuri yake yaiva nevana vasere yaitaura chiPolish kumba asi vakanga vasingawirirani panyaya yokuti vaizviona sevanhu vokuLithuania here kana kuti vokuPoland. Brazauskas akatsigira kubatana kwenyika yeLithuania nePoland uye akagovera mabhuku mumutauro weLithuania, basa rakarambidzwa panguva iyoyo.