Table:
text: List of castles in the Pays de la Loire
Maine-et-Loire
Maine-et-Loire
Name_ Date_ Condition_ Ownership_Access Notes_
Château de Montsoreau 1455 Restored Département Ruinous by late 19th century, restored, houses the Musée des Goums Marocains.
Château du Plessis-Bourré 1468-1472 Intact Private (open to the public) Externally unchanged since the 15th century, working drawbridge.
Château du Plessis-Macé 13-16th century Intact  Converted to house 15th century.
Château de Pouancé 12-13th century Ruins  Considered second fortress of Anjou, after Angers.
Château de Saumur 12th century Restored City of Saumur Page for September in the Tres Riches Heures du Duc de Berry depicts the Chateau as it looked in 1410.
Château de la Turmelière 13th century Ruins  19th century building of same name nearby.

text: List of castles in the Pays de la Loire
Maine-et-Loire
Maine-et-Loire
Name_ Date_ Condition_ Ownership_Access Notes_
Château d`Angers 13th century Substantially intact City of Angers Walls nearly 2,000 feet (610 m) in circumference, incorporating 17 towers originally 130 feet (40 m) high.
Château de Baugé 15th century Intact  Built as hunting lodge.
Château de Bourmont 16-19th century Intact and extended Private Extended in Neo-Gothic style
Château de Brissac 15-17th century Rebuilt Private Damaged during French Wars of Religion, rebuilt 1611 in baroque style.
Château de Champtocé 13-16th century Ruins  
Château de Montreuil-Bellay 11-13th century Substantially intact Private Divided into rental units in 1822, restored after 1860.

Question: From the list of castles in the Pays de la Loire, how many of these castles are currently in ruins?