 Saint-Léonor thus became the main borough of the lordship of Ponthual, surrounded by various dependent hamlets.During the eleventh century, the family of Ponthual built the Old Church ("la Vieille Eglise"), which is one of the relatively rare romanesque churches of Brittany.The town's name changed to "Saint-Léonaire de Ponthual" at the end of the seventeenth century and then to "Saint-Lunaire de Ponthual".