Jewish-German Catholic nun, theologian and philosopher (1891–1942)
Edith Stein (in religion Teresa Benedicta of the Cross; 12 October 1891 – 9 August 1942) was a German Jewish philosopher who converted to Catholicism and became a Discalced Carmelite nun. Edith Stein was murdered in the gas chamber at Birkenau on 9 August 1942, and is canonized as a martyr and saint of the Catholic Church; she is also one of six patron saints of Europe. Stein was born into an observant Jewish family, but had become an agnostic by her teenage years.
https://en.wikipedia.org/wiki/Edith_Stein