The oldest parts of this fine church date from the 12th Century, although the majority of what can be seen standing today was built in the following centuries. The southern side of the church is well known for having some of the finest stained glass in the area, dating from the 15th and 16th Century. Another of the highlights of the huge basilica is the tomb of Oliver de Clisson, high constable of France, who played an instrumental role in the Hundred Years War.
