Bartolo Longo
Blessed Bartolo Longo was an Italian lawyer who has been beatified by the Roman Catholic Church. He was a former Satanist priest who returned to the Christian faith and became a third order Dominican, dedicating his life to the Rosary and the Virgin Mary. He was eventually awarded a papal knighthood of the Order of the Holy Sepulchre.
Bartolo Longo was born into a wealthy family on February 10, 1841 in the small town of Latiano, near Brindisi, in southern Italy. His parents were devout Roman Catholics. In 1851, Longos father died and his mother remarried a lawyer. Despite Longos stepfather wanting him to become a teacher, Longo was set on becoming a lawyer. In 1861, Longo succeeded in convincing his stepfather and was sent to the University of Naples to study law.
Source: Wikipedia