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,
Saint Isaac's Cathedral Saint Isaac's Cathedral Saint Isaac's Cathedral or Isaakievskiy Sobor () in Saint Petersburg, Russia, is the largest Russian Orthodox cathedral ("sobor") in the city. It is the largest orthodox basilica and the fourth largest (by the volume under the cupola) cathedral in the world. It is dedicated to Saint Isaac of Dalmatia, a patron saint of Peter the Great, who had been born on the feast day of that saint. The church on St Isaac's Square was ordered by Tsar Alexander I, to replace an earlier structure by Vincenzo Brenna, and was the fourth consecutive church standing at this place.