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| (as of 2011)
4 October 1919 (97 years ago)
Catedral Nossa Senhora de Nazaré
Tv. da Catedral, 4 - Centro, Rio Branco - AC, 69908-000, Brazil
Roman Catholic Archdiocese of Porto Velho
Catedral Nossa Senhora, Paróquia Santa Inês, Faculdade Diocesana São José
The Roman Catholic Diocese of Rio Branco (Latin: Dioecesis Fluminis Albi Superioris) is a Latin suffragan see in the ecclesiastical province of the Metropolitan Archbishop of Porto Velho (Rondônia), in the upper Amazon River basin).
Its cathedral episcopal see is the Marian Catedral Nossa Senhora de Nazaré, dedicated to Our Lady of Nazareth, in the city of Rio Branco, Acre state, Brazil.
Roman Catholic Diocese of Rio Branco Wikipedia
On 4 October 1919, Pope Benedict XV established the Territorial Prelature of Acre and Purus (Italian Acre e Purus), named after the Amazonian rivers Acre and Purus, on canonical territory split off from the then Diocese of Amazonas.
Pope Pius XI changed the name of the prelature to the Territorial Prelature of São Peregrino Laziosi no Alto Acre e Alto Purus on 10 December 1926, but its original name was restored on 26 April 1958 by Pope Pius XII.
The territorial prelature was elevated to a bishopric and hence renamed after its see as Diocese of Rio Branco by Blessed John Paul II on 15 February 1986.
As per 2014, it pastorally serves 443,000 Catholics (75.1% of 589,625 total) on 104,473 km² in 32 parishes and 5 missions with 33 priests (23 diocesan, 10 religious), 22 deacons, 105 lay religious (19 brothers, 86 sisters) and 18 seminarians.
(all Roman Rite)
Territorial Bishop-Prelates of Acre and PurusGeraldo Van Caloen, O.S.B. (12 March 1906 - resigned 13 Dec 1907), Titular Bishop of Phocæa (1906.03.12 – death 1932.01.16); later Abbot nullius of Nossa Senhora do Monserrate do Rio de Janeiro (Brazil) (1907.12.13 – 1915.05.18)
Próspero Gustavo Bernardi, Servite Order (O.S.M.) (15 December 1919 - 10 December 1926 see below), Titular Bishop of Paltus (1919.12.15 – death 1944.02.01)
Territorial Bishop-Prelates of São Peregrino Laziosi no Alto Acre e Alto PurusPróspero M. Gustavo Bernardi, (O.S.M.) (see above 10 December 1926 - death 1 February 1944)
Apostolic Administrator Father Antônio Julio Maria Mattioli, Society of Mary (S.M.) (1941 – 1948.01.10 see below)
Antônio Julio Maria Mattioli, O.S.M. (see above 10 January 1948 - 13 April 1962 see below), Titular Bishop of Lacedæmonia (1948.01.10 – death 1962.04.13)
Territorial Bishop-Prelates of Acre and PurusAntônio Julio Maria Mattioli, S.M. (see above 1958.04.26 – death 1962.04.13)
Giocondo Maria Grotti, O.S.M. (16 November 1962 - death 28 September 1971), Titular Bishop of Thunigaba (1965.07.08 – 1971.09.28)
Moacyr Grechi, O.S.M. (10 July 1972 - 15 February 1986 see below) Titular Bishop of Vegesela in Numidia (1973.07.20 – death 1978.05.26)
Suffragan Bishops of Rio Branco
Moacyr Grechi, O.S.M. (see above 15 February 1986 - 29 July 1998), Appointed Archbishop of Rio Branco's Metropolitan see Porto Velho (Brazil) (1998.07.29 – retired 2011.11.30)
Joaquín Pertíñez Fernández, Order of Augustinian Recollects (O.A.R.) (24 February 1999 - ...), no prior office