Mariano Arciero

Mariano Arciero (26 February 1707 – 16 February 1788) was an Italian priest of the Roman Catholic Church. As a priest in Naples he exercised his functions as both a pastor and theologian, and was later known as the "Apostle of Calabria" due to his tireless apostolate and efforts in evangelization. His beatification was celebrated on 24 June 2012. His spiritual writings were approved by theologians on 10 September 1839. Two local processes in Naples in addition to Salerno were held and both were validated on 30 September 1842 so that the cause could continue under the direction of the Congregation for Rites. Pope Pius IX approved his life of heroic virtue and proclaimed him to be Venerable on 14 August 1854.

The miracle required for his beatification (a healing medicine and science fail to explain) was investigated from 11 February 1953 until 17 November 1954, in Campagna and received validation decades later from the Congregation for the Causes of Saints (C.C.S) on 31 March 2008. Medical experts issued unanimous approval for the healing in question to be regarded as a legitimate miracle on 4 March 2010; theologians agreed with the verdict on 19 November 2010 (also unanimously) as did the cardinal and bishop members of the C.C.S. on 5 April 2011. It received final approval from Pope Benedict XVI on 27 June 2011, who appointed Cardinal Angelo Amato – the prefect of the Congregation for the Causes of Saints to preside over the beatification. This was held in Terme on 24 June 2012.