Suwałki Governorate
Aleksandra was born in Suwałki, in the Suwałki Governorate, Russian Empire (now in Poland), and was the seventh child of Piotr Paweł and Julia Jadwiga (née Zahorska). Her father was a townsman, and her mother came from the nobility, but both their families were relatively poor. Aleksandra's parents died when she was ten years old, and the orphan was raised by her grandmother, Karolina Zahorska (née Truskolaska), and her aunt, Wiktoria Maria Zahorska.