The church of Lamonzie Montastruc’s former priory dates from the twelfth century and its many renovations have, sadly, not all been for the good.

It is composed of a rectangular chancel, a straight chevet and a nave with no aisles and shallow transepts. The dome of the crossing is supported by four pillars whose interior angles are flat - unusual, but, judging by the abacuses which adorn the pillars, extremely old.

The flattened dome has, in quite recent years, been poorly restored and only the pendentives are original.