Father Ange de Sainte Rosalie, O.A.D., (English: Angel of Saint Rosalie) (1655–1726) was a French genealogist, and friar of the priory of the Discalced Augustinians.
He was born at Blois, his real name being François Vaffard. After making his religious profession in 1672, he filled many important offices in the houses of his order, and finally devoted himself to the study of genealogy, contributing extensively to the Grande dictionnaire historique of Moréri. From the materials collected by Père Anselme and Caille du Fourny he prepared a revision of the Histoire généalogique et chronologique de la maison royale de France et des grands officiers de la couronne, which was left unfinished at his death, which occurred in Paris. It was completed by Père Simplicien, his collaborator. The latter also prepared three additional volumes.
His other works include L'Etat de la France, edited in 1749 by the Benedictines of Saint-Maur, with a supplementary volume on the coronation, the armorial bearings, and prerogatives of the kings of France.
This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed (1913). Catholic Encyclopedia. Robert Appleton Company.