The Cathedral Basilica of St Denis (French: Cathédrale royale de Saint-Denis, or simply Basilique Saint-Denis, previously the Abbaye de Saint-Denis) is a large abbey church in the commune of Saint-Denis, now a northern suburb of Paris. The abbey church was created a cathedral in 1966 and is the seat of the Bishop of Saint-Denis, Pascal Michel Ghislain Delannoy. The building is of unique importance historically and architecturally.