Toulouse Cathedral (Cathédrale Saint-Étienne de Toulouse) is a Roman Catholic cathedral, and a national monument of France, located in the city of Toulouse. It is the seat of the Archbishop of Toulouse. The exact date of the original building is unknown; the first mention of a church building on that site is found in a charter of 844. In 1073 the bishop of Toulouse commenced work on a more elaborate structure, followed by additional construction in the 13th century.