John Eudes was born at Ri, Normandy, France, on November 14, 1601, the son of a farmer. He went to the Jesuit college at Caen when he was 14, and despite his parents’ wish that he marry, joined the Congregation of the Oratory of France in 1623. He studied at Paris and at Aubervilliers, was ordained in 1625, and worked as a volunteer, caring for the victims of the plagues that struck Normandy in 1625 and 1631, and spent the next decade giving Missions, building a reputation as an outstanding preacher and confessor and for his opposition to Jansenism.

He became interested in helping fallen women, and in 1641, with Madeleine Lamy, founded a refuge for them in Caen under the direction of the Visitandines. John founded seminaries at Lisieux in 1653 and Rouen in 1659 and was unsuccessful in another attempt to secure Papal approval of his congregation, but in 1666 the Refuge sisters received Pope Alexander III’s approval as an institute to reclaim and care for penitent wayward women. John continued giving missions and established new seminaries at Evreux in 1666 and Rennes in 1670.