Stavanger Cathedral is said to have started construction of the cathedral around 1100. It was finished around 1150: the city of Stavanger counts 1125 as its year of foundation. The cathedral was dedicated to Saint Swithun, an early Bishop of Winchester and subsequently patron saint of Winchester Cathedral. The church was initially the seat of the Diocese of Stavanger within the Roman Catholic Church until the Protestant Reformation. Stavanger was ravaged by fire in 1272, and the cathedral suffered heavy damage. It was rebuilt under Bishop Arne (1276–1303) at which time the Romanesque cathedral was enlarged in the Gothic style. In 1682,
Cathedral of Saint Domnius AD, is regarded as the oldest Catholic cathedral in the world that remains in use in its original structure, without near-complete renovation at a later date (though the bell tower dates from the 12th century). The structure itself, built in AD 305 as the Mausoleum of Diocletian, is the second oldest structure used by any Christian Cathedral. The cathedral was named after Saint Domnius ("Saint Dujam", or "Saint Domnius") patron saint of Split, who was a 3rd-century Bishop of Salona. Salona was a large Roman city serving as capital of the Province of Dalmatia. Today it is located near the