Château de Châtillon-d'Azergues

In 1173, the castle was the property of the Count of Forez, who ceded it to the Archbishop of Lyon.

During the 13th century, the Oingt family had possession before it passed by marriage to the Albons.

In 1260, the keep was mentioned in an act which stipulated that "les habitants de Châtillon sont tenus à travailler aux réparations du château, mais rien ne peut leur être imposé pour le donjon qui sert exclusivement de retraite au seigneur" ("the inhabitants of Châtillon are required to work on repairs of the castle, but nothing can be imposed on them for the keep which is used exclusively as retirement for the lord").

During the 15th century, a hexagonal staircase towers was attached which asloserved the other buildings.

The oldest part of the castle is a 12th-century rectangular building supported by very flat buttresses,[2] connected to each other by blind arcades forming a decoration known as a frise lombarde (Lombardy frieze).