He published the Armorial général, ou registre de la noblesse de France (10 vols, 1738 – 1768), which must not be confounded with the publication written by his uncle, inasmuch as it related solely to noble families and was not an official collection.
Complete copies of this work, which should contain six registres, are comparatively rare. A seventh registre, forming vol. xi, prepared by Ambroise-Louis-Marie, nephew of Louis Pierre, was published in 1847 by comte Charles d'Hozier. Louis Pierre died on the 25th of September 1767.
His eldest son, Antoine Marie d'Hozier de Sérigny (1721 – c. 1810), was his father's collaborator and continuator; and his fourth son, Jean-François Louis, wrote an account of the Knights of St Michael in the province of Poitou, which was published in 1896 by the vicomte P de Chabot.