 Garaby's name is also associated with the foundation, along with Samuel Bochart, Pierre-Daniel Huet and Jean Regnault de Segrais, of the Royal Academy of Belles-Lettres of Caen.After Hervé de Pierrepont, Garaby's maternal uncle, died on 18 August 1662, he inherited his property and names, to be called from then on "Garaby de Pierrepont de La Luzerne Étienville".This plenteous bequest made him think of entering into matrimony.