Sister Cecylia Roszak, at the age of 21, joined the Dominican cloistered in Krakow. She made her first religious vows in 1931, and three years later – perpetual. In 1938 she went to Vilnius, where the Dominicans wanted to set up a new monastery.
During the German occupation, the sisters hid the Jews with the risk of their lives. They also helped the local population. In January 1944, sister Cecylia took in two children whose parents were savagely murdered. One of them was the scoutmaster Adam Kowner. After the war, looking for nuns who saved his life, he came to the monastery in Gródek to thank her sister Cecylia. The authorities of Israel awarded the medal “Righteous among the nations of the world” to the superior of the Vilnius nuns. At present sister Cecylia is the oldest nun in Poland, and also the oldest inhabitant of Małopolska.