sentences:  The Chevalier de Grimaldi became governor-general of Monaco on 20 May 1732, when his brother-in-law Jacques I, Prince of Monaco and his young nephew Honoré III, Prince of Monaco moved to Hôtel Matignon in Paris and remained there, even after the proclamation in 1734 of Honoré as Prince of Monaco.This situation remained the same for half a century until Antoine's death in 1784, when Honoré III was already 64 years old.Antoine Grimaldi was an able regent.