Danuta (Jadwiga) Biały (née Muszka) was born in 1914. During the Second World War she lived in Lviv (Ukraine). Mieczysław’s sister. In her home she sheltered a woman of Jewish origin, Róża, and her daughter Mirelle. Danuta passed away on 21 April 1996.

Danuta Biały was awarded the title of Righteous Among the Nations in 2012.