Born in Miszałury near Slabodka in the Braslaw region on 3 March 1932. She was orphaned early (her father died when she was 14 and her mother died when Jadwiga Sadowska was 19). She completed four forms of the primary school in Miszałury, where she lived though the war. At first she worked on her parents’ farm, and after the war at the kolkhoz. She got married when she was 30. She has been a widow since the 1980s. She lives with her son and grandchildren in Braslaw. She was in Poland once to visit her family.