Samuel de Champlain was temporarily buried in the church while a standalone chapel was built to hold his remains in the upper part of the city. Unfortunately, this small building, along with many others, was destroyed by a large fire in 1640. Though immediately rebuilt, no traces of it exist anymore: his exact burial site is still unknown, despite much research since about 1850, including several archaeological digs in the city. There is general agreement that the previous Champlain chapel site, and the remains of Champlain, should be somewhere near the Notre-Dame de Québec Cathedral.