Its principal church, S. Flaviano, was raised to the dignity of a cathedral on 21 December 1239, and separated from the jurisdiction of the diocese of Osimo. The diocese of Osimo was suppressed, having chosen to support the Emperor Frederick II against the pope.[2] On 22 May 1240, the Castello di Recanati was raised to the dignity of a city by Gregory IX.[3]
During its early history it often lost and regained its episcopal status due to papal politics.[4] On 27 July 1263 the diocese was completely suppressed by Pope Urban IV in the Bull Cives Recanatensis, due to its support of Manfred, who claimed the Kingdom of Sicily.[5]
^Leopardi, p. 26. Eubel, Hierarchia catholica I, p. 410, note 1 (stating that the bull was dated 4 July 1240).
^Cappelletti, Le chiese d' Italia VII, pp. 197-198, quoting the bull in full. Gaetano Moroni, ed. (1852). Dizionario di erudizione storico-ecclesiastica (in Italian). Venezia: Tipografica Emiliana. pp. 277–278.
^Umberto Benigni (1911). "Recanati and Loreto." The Catholic Encyclopedia. Vol. 12. New York: Robert Appleton Company, 1911; retrieved: 6 February 2019.
^Pope Urban IV, "Cives Recanatenses", in Bullarum diplomatum et privilegiorum sanctorum Romanorum pontificum Taurinensis editio, Tomus III (Turin 1858), pp. 697–698 (in Latin).