Built in 12th century, the lack of money under the reign of Philippe le Bel the following century let the construction of the monument unachieved.
The have and the gate should be at the height of the cruce. the dome, built after the fall of the transept is from 17th century.
Please note that the collegiate church is currently closed to the public due to major renovation work!
From 01/01 to 31/12, daily.