By decision of the Military Council in Graz, Serbs were allowed to resettle the area. The Serbs came in three waves: 1609, 1639 and 1666. Together with Tounj, Plaški was centre of a military company that was part of Ogulin's regiment. The Eparchy of Upper Karlovac of the Serbian Orthodox Church was founded in 1711 and had its first seat in Gomirje monastery and from 1721 to 1941 the seat was in Plaški. The Orthodox Cathedral was built from 1756 to 1763.