Marianna Biernacka, called “blessed mother-in-law”, gave life for saving life of her daughter-in-law. Stanislawa Leszczynska was a midwife. She was receiving labors in the Nazi concentration camp Auschwitz. Both women lived during the Second World War. They showed great kindness and piety. The aim of the article was to present the life histories of Marianna Biernacka and Stanislawa Leszczynska and the events that affected their beatification. In both cases their heroic acts became famous only decades after the war. The articleʼs message is clear: everyone can become a saint. The article was based on the available books about Marianna Biernacka and Stanislawa Leszczynska, which are few in the literature.
