Monastery and Gomirje monastery. Many Orthodox churches were demolished during World War II and during the Croatian War of Independence, while some were rebuilt with EU funding, the Croatian government and Serbian diaspora donations. In the 1560s a Serbian Orthodox bishop was installed in the Metropolitanate of Požega, seated in the monastery of Remeta. In the 17th century, the Eparchy of Marča was founded at Marča, in the Croatian frontier. These were part of the Serbian Orthodox Patriarchate of Peć, which was reestablished in 1557, and lasted under Ottoman governance until 1766. Other bishoprics were founded, although their approval by the Habsburgs hinged on the belief that they would facilitate the union of these Orthodox Christians with the Catholic Church, and in fact, many, including some Orthodox bishops, did unify with Rome. Serbs in the Croatian Military Frontier were out of the jurisdiction of the Serbian Patriarchate of Peć and in 1611, and after demands from the community, the Pope established the Eparchy of Marča (Vratanija) with seat at the Serbian-built Marča Monastery, with a Byzantine vicar instated as bishop sub-ordinate to the Roman Catholic bishop of Zagreb – working to bring Serbian Orthodox Christians into communion with Rome, which caused struggle of power between the Catholics and the Serbs over the region. In 1695 Orthodox Eparchy of Lika-Krbava and Zrinopolje was established by metropolitan Atanasije Ljubojević and certified by Emperor Josef I in 1707. In 1735 the Serbian Orthodox protested in the Marča Monastery and became part of the Serbian Orthodox Church until 1753 when the Pope restored the Roman Catholic clergy. On 17 June 1777 the Eparchy of Križevci was permanently established by Pope Pius VI with its Episcopal see at Križevci, near Zagreb, thus forming the Croatian Greek Catholic Church which would after World War I include other people; the Rusyns and ethnic Ukrainians of Yugoslavia. Jovan, the Metropolitan of Zagreb and Ljubljana stated that 30,000 Serbs had converted to Catholicism since the Operation Oluja (1995). In the 2011 census, regarding religious affiliation, 40,000 declared as "Serbs of the Orthodox faith", while 160,000 declared as "Orthodox". Language The Serbian language is officially used in 23 cities and municipalities in Croatia. In April 2015 the United Nations Human Rights Committee urged Croatia to ensure the right of minorities to use their language and alphabet. The committee report stated that particularly concerns surrounded the use of Serbian Cyrillic in