Jean II de Brosse, also Jehan II de Brosse (1432 – 6 August 1482), was the elder son of Jean I de Brosse, Marshal of France.[1] He would become chamberlain of the king of France in 1449. He married Nicole, Countess of Penthièvre, daughter of Charles, Seigneur d'Avaugour and Isabeau de Vivonne.[2] Nicole later brought him, through inheritance in 1479, the County of Penthièvre in the Duchy of Brittany.[2]
Jean is known to have rebuilt the donjon in Fouras in 1480–1490.[3]