The lords of Beaugency attained considerable importance in the 11th, 12th and 13th centuries; at the end of the 13th century they sold the fiefdom to the Crown. Afterward it passed to the house of Orléans, then to those of Dunois and Longueville, and ultimately again to that of Orléans. The city of Beaugency has been the site of numerous military conflicts. It was occupied on four separate occasions by the English. On June 16–17, 1429, it was the site of the famous Battle of Beaugency, when it was freed by Joan of Arc. Beaugency also played an important strategic role in the Hundred Years´ War.
The 36m high square tower of Château of Beaugency was built in the 12th century. In the 1530 cardinal Le Longueville ordered bo enlarge the keep as a larger castle. It was burned by the Protestants in 1567 and suffered extensive damage to the walls, the castle, and the church.
Saint-Georges de Boscherville Abbey is a former Benedictine abbey. It was founded in about 1113 by Guillaume de Tancarville on the site of an earlier establishment of secular canons and settled by monks from the Abbey of Saint-Evroul. The abbey church made of Caumont stone was erected from 1113 to 1140. The Norman builders aimed to have very well-lit naves and they did this by means of tall, large windows, initially made possible by a wooden ceiling, which prevented uplift, although this was replaced by a Gothic vault in the 13th century. The chapter room was built after the abbey church and dates from the last quarter of the 12th century.
The arrival of the Maurist monks in 1659, after the disasters of the Wars of Religion, helped to get the abbey back on a firmer spiritual, architectural and economic footing. They erected a large monastic building one wing of which fitted tightly around the chapter house (which was otherwise left as it was).