The following on Anselme from Britannica:
"Anselm of Saint Mary also called FATHER ANSELM, French ANSELME DE
SAINTE-MARIE, or PÈRE ANSELME, original name PIERRE DE GUIBOURS (b. 1625,
Paris--d. Jan. 17, 1694, Paris), genealogist and friar whose history of the
French royal family and nobility is a valuable source of detailed and
unusual information.
Anselm entered the order of the Discalced Hermits of St. Augustine in 1644
and, remaining in their monastery (Couvent des Petits Pères), devoted his
entire life to genealogical studies. Among his early works are Le Palais de
l'honneur (1663-1668; "The Palace of Honour"), concerning the genealogy of
the houses of Lorraine and Savoy; Le Palais de la gloire (1664; "The Palace
of Glory"), dealing with the genealogy of various illustrious French and
European families; and La Science héraldique (1675; "The Science of
Heraldry").
His most important work is the Histoire généalogique et chronologique de la
maison royale de France, des pairs, des grands officiers de la couronne, et
de la maison du roy et des anciens barons du royaume (2 vol., 1674;
"Genealogical and Chronological History of the Royal House of France, the
Peers, the Grand Officers of the Crown, and of the Royal House and the
Ancient Barons of the Realm"). After his death this history of French
nobility was continued by Honoré Caille, seigneur du Fourny, who had
encouraged its publication, and by two other friars at the monastery. The
third and most complete edition is that of 1726-33. A valuable source, it
contains in its notes exact references to many original documents. "