Marianna Biernacka
Polish martyr (1888–1943)
Feast: 12 June (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Who they were
In the small town of Naumowicze near Grodno in Poland, Blessed Marianna Biernacka, mother of a family and martyr, who, during the war, under the occupation, freely offered herself to the soldiers in place of her pregnant daughter-in-law and, shot on the spot, received the glorious palm of martyrdom.
The miracles
As a martyr she was raised to the altars without a miracle.
Why that counted as sanctity
The Roman Martyrology remembers her on 13 June as a mother who offered herself in place of her pregnant daughter-in-law and was shot.
- Roman Martyrology, 13 June (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q2509584 — dates, feast day and identifiers (CC0)
- English Wikipedia — Marianna Biernacka (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.