monastic

Monastic: of or relating to a monastery. Monasteries were the center of pious religion in medieval times, and were therefore also a center of art, as most art revolved around the religion. Members of the monastic orders were responsible for illuminated scriptures and architecture of churches and monasteries. This is a typical monastery from the medieval period:

http://www.medieval-spell.com/Images/Medieval-Monasteries/Monte-Cassino.jpg wikipedia.org