Confraternity of the Immaculate Conception

The Confraternity of the Immaculate Conception of the Blessed Virgin Mary is one of the oldest lay apostolates still operating in the Roman Catholic Church, having been part of the Congregation of Marian Fathers of the Immaculate Conception founded by Stanislaw Papczynski. "The Blessed Marian Founder fervently encouraged his spiritual sons to establish confraternities of the Immaculate Conception at Marian churches.

Source: Wikipedia — Confraternity of the Immaculate Conception (CC BY-SA 4.0)