- Divine Mercy
Founded the Congregation of the Sisters of Our Lady of Mercy in Poland by establishing the first "Mercy House" in Warsaw on November 1, 1862.
Is it a small matter to save one soul?" (M. Potocka)
Founded the "Maison de la Miséricorde" in Laval, France for women in need of deep moral conversion who wanted to change their way of life.
M. Potocka received her spiritual formation from M. Rondeau during her novitiate in the Laval "Mercy House" before returning to Poland where she instituted the same apostolate.
I praise all God's attributes. I humble myself before His justice… Mercy, however, attracts me more than other divine perfections. I exalt it and glorify it with all my soul." (M. Rondeau)
Perpetually professed member of our Congregation.
Beatified by Pope John Paul II on April 18, 1993.
Acknowledged as Spiritual Co-Foundress of the Congregation on August 25, 1995.
Canonized by Pope John Paul II on April 30, 2000 in Rome.
O my Jesus, each of Your saints reflects one of Your virtues; I desire to reflect Your compassionate heart, full of mercy; I want to glorify it.
Let Your mercy, O Jesus, be impressed upon my heart and soul like a seal… Glorifying Your mercy is the exclusive task of my life." (St. Faustina, Diary 1242)