The Roman Catholic Diocese of Urgell is a diocese located in the northeastern part of Spain, primarily in the region of Catalonia. It was established in the early Christian era and has a rich history that reflects the development of the Catholic Church in the area. The diocese is part of the Ecclesiastical Province of Barcelona and serves a diverse population through its various parishes and institutions. The diocese is also notable for its connection to the Principality of Andorra, as the bishop of Urgell serves as one of the co-princes of Andorra. The diocese's administrative center is in the city of La Seu d'Urgell, where the cathedral, dedicated to Saint Mary, stands as a significant landmark and a center of worship for the local community.