Maria Leonis Müller
Sister of the Congregation of St Catherine, martyr in East Prussia
Who they were
Maria Leonis Müller, Käthe Elisabeth in the world, was born at Gdańsk on 3 February 1913 and made her religious profession on 2 May 1938, serving in 1944 in the administration of the Marienkrankenhaus at Allenstein. Captured by the Red Army on 22 January 1945, imprisoned on 27 January, moved to the camp of Zichenau on 9 February and deported to Russia on 16 March, she died there, probably on 5 June 1945, of the violence she had suffered. Pope Leo XIV beatified her on 31 May 2025.
The miracles
As a martyr she was raised to the altars without a miracle.
Why that counted as sanctity
She was repeatedly raped by eight Soviet soldiers, then imprisoned and deported, and died at the age of thirty-one.
The cause
The cause continues. No postulation address is published here yet. Favours received through this person’s intercession, and offers of help, are best sent to the religious order or congregation they belonged to, or to the diocese where the cause was opened; either will pass them to the postulation.
- Dicastery for the Causes of Saints - christophora-klomfass-e-14-compagne
- Dicastery for the Causes of Saints - beatifications of 31 May 2025
Checked against the sources listed on 22 September 2026. Corrections welcome.