Pierre Lambert de la Motte was a 17th-century French Catholic prelate and missionary who helped establish the Paris Foreign Missions Society. Born in La Boissière in 1624, he was appointed as the titular bishop of Beirut and the first Apostolic Vicar of Cochin by Pope Alexander VII. He traveled extensively through Asia, including journeys across Persia and India, to spread the faith. His missionary work primarily focused on Siam, where he played a central role in organizing local religious structures and educational institutions.