From the martyrology:
"At Aegea, during the persecution of Diocletian, the birthday of the holy martyrs Cosmas and Damian, brothers. After miraculously overcoming many torments from bonds, imprisonment, fire, crucifixion, stoning, arrows, and from being cast into thesea, they received capital punishment. With them are said to have also suffered three of their brothers, Anthimus, Leontius, and Euprepius."
"At Paris, St. Vincent de Paul, priest, and founder of the Congregation of the Mission and of the Daughters of Charity, an apostolic man and a father to the poor."