It is a national monument, and is the seat of the Bishop of Gap and Embrun.

The original cathedral on the site was built around the 5th century on the ruins of a Roman temple to the God Apollo.

Forty-one different types of stone were chosen for the construction, showing Byzantine influence.

Roman and Gothic styles were also chosen, as was common during this era for a sombre and harmonious feeling at the same time.

This article on a Roman Catholic cathedral in France is a stub.