In 1662, Charles IV, the 58-year-old Duke of Lorraine and Bar (1604–1675) visited the chapter and met the 15-year-old Ludres, promptly deciding to marry her because of her great beauty. He had abandoned his wife, Duchess Nicole (1608–1657), marrying bigamously his mistress, Béatrix de Cusance, Baroness of Belvoir and Saint-Julien (1614–1663), and was excommunicated for this. By 1662, however, he had also abandoned the baroness and the children they had together, then returned to them when his legal wife died in 1657, only to leave them again for Ludres.