The Diocese of Senj-Modruà ¡ (, , ) was located in the historical Kingdom of Croatia, while it was in personal union with Kingdom of Hungary, and it was suffragan of Zagreb.
The year of its foundation is not known. Miraeus, about 1150-1160, was the first bishop. The See of Modruà ¡ (Modrus) was established at Krbava (Latin: Corbavia) in Lika region in 1185. Pius II (1458-1464) moved the former see from Krbava to Modruà ¡, as it suffered from the advance of the Turks. From that time it was known as the See of Modruà ¡.
Urban VIII united the See of Senj with that of Modruà ¡. Gregory XVI in 1836 confirmed this union "per aequalitatem". Until 1600 the see was suffragan of Split, later of Esztergom, then of Kalocsa; since 1852 it was suffragan of Zagreb.
The diocese consisted of Rijeka, of some parts of the "Komitat" of Zagreb, and of the Croatian Military Frontier. It was divided into five archdeaneries and fifteen vice-archdeaneries, and 137 parishes. The language at Mass and during the services was Old Slavic, by reason of a papal privilege. There were two chapters which belonged to Senj and to Modruà ¡, and one collegiate chapter at Rijeka. The seminary was situated at Senj; it was established by Bishop Mirko Oà ¾egoviàin 1857. Trsat, a place of pilgrimage, was situated in the neighbourhood of Rijeka.
In 1969 the Diocese of Senj was joined with the Diocese of Rijeka to form the Metropolitan Archdiocese of Rijeka-Senj.
In 2000 the Diocese of Senj was restoà Âed as Diocese of GospiÃÂ-Senj.
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