The House of Oléron-Vendôme (French: Maison d'Oléron-Vendôme) is a royal house of Celaeno. The leader of the House of Oléron-Vendôme is enthroned as the Emperor of Vanivere, and holds the thrones of four other provinces within the Vaniveran Empire. With the establishment of the Silver Millennium Imperium in 2808, the Head of the House of Oléron-Vendôme also holds the lunar throne of the Silver Millennium.