 At that time, the stronghold was in the hands of the family d'Ostun, in whose possession it remained for over a century.In 1440, the lordship and castle passed by marriage to Edme de Salins, and in 1478, to his son Jean.The son also owned a house in Avallon in front of the church of Saint Lazarus, which was known as hôtel des Sires de Domecy.