[1] His sister was Françoise Charlotte Ernestine de La Rochfoucauld, who married Pierre Jean Julie Chapt, Marquis of Rastignac.

[7] La Rochefoucauld accompanied King Louis XVIII to Ghent, and was appointed Colonel of the 5th Legion of the National Guard of Paris and aide-de-camp to Charles, Count of Artois during the Second Restoration.

[9] In August 1824, King Louis XVIII named him Director General of the Division of Fine Arts and Royal Theaters, a department within the Ministry of the Interior under Minister Jacques Joseph de Corbière.

A number of decrees during his tenure were unpopular, including regulating the length of Opera dancer's skirts,[11] and having plaster vine leaves applied to the middle of all the statues.

With the help of Guillaume Capelle, he unsuccessfully tried to take control of the newspapers undertaking to remove Joseph-François Michaud, a highly critical royalist journalist, from overseeing La Quotidienne.

[12] He was able to get Louis XVIII to authorize the purchase of David's Intervention of the Sabine Women and Thermopyle for the Louvre, and Théodore Géricault's The Raft of the Medusa, which was bought from the painter's heirs in 1824.

In 1825, together with Louis Nicolas Philippe Auguste de Forbin, he chose the subjects for the decorations of the ceilings of four rooms, intended for the Conseil d'État of the Jacques Lemercier wing of the Louvre.

[15] As a legitimist, La Rochefoucauld was opposed to the July Monarchy and was prosecuted for his pamphlet Today and Tomorrow (French: Aujourd'hui et demain), published in 1832.