While fighting against the Bretons and Blesevins, protecting his territory from Vendôme to Angers and from there to Montrichard, he had more than a hundred castles, donjons, and abbeys constructed, including those at Château-Gontier, Loches (a stone keep), and Montbazon.
château | Château-Thierry | Château de Marly | Château de Chantilly | Château de Malmaison | Château d'Hérouville | Château de Vincennes | Château Romer | Château Margaux | Château Gaillard | Château de Chaumont | Château Pape Clément | Château Laurier | Château La Tour Carnet | Château-Gontier | Château de Valençay | Château de Saint-Cloud | Château d'Écouen | Château d'Amboise | Château | Rennes-le-Château | Loches | Château Palmer | Château Lynch-Bages | Château Latour | Château La Mission Haut-Brion | Château Frontenac | Château d'Yquem | Château de Vizille | Château de Saint-Germain-en-Laye |