Once a proud Romanesque church, the various horrors of the Hundred Years War reduced the building to ruins, apart from the entrance gate and bell tower.
Bad weather, poor foundations, old age and renovations can all cause the demolition of a religious building. However, so can an army, as these buildings were all victims of one of Europe's most intractable conflicts.
Having been escaped total destruction during the Hundred Years War, major efforts were made to rebuild the church in the aftermath. These were for nought, it was totally destroyed during the French Revolution. The only part that was saved? The bell.