The Diocese of Mariana in Corsica () was a Roman Catholic ecclesiastical territory in Mariana, Corsica, in the north-eastern corner of the island."Diocese of Mariana" Catholic-Hierarchy.org. David M. Cheney. Retrieved July 15, 2016"Titular Episcopal See of Mariana en Corse" GCatholic.org. Gabriel Chow. Retrieved July 15, 2016 In 1563 the diocese was united with the Diocese of Acci(a) to form the Diocese of Accia and Mariana. Both dioceses were poor and had lost population. Mariana had been abandoned and its bishop lived in Bastia to the north, the seat of the civil government of the island. The Cathedral sat alone near the banks of the River Golo some three miles from the sea, in the midst of fields.

History

In the earliest history of the diocese, Ferdinando Ughelli reportsUghelli, IV, p. 1000. He admits, however, that neither the time nor the circumstances of the martyrdom are known. the existence of a Saint Petreius, Bishop of Mariana and martyr, for whom a shrine was built by a certain Ugo Colonna of Rome, according to the Sacra Corsicae Chronica of Salvatore Vitale. Giuseppe Cappelletti points out that Vitale is the only source of the story, but that Ugo Colonna built the cathedral, which was dedicated to the Assumption of the Virgin Mary, and that San Petreio was a different church. He also notes that the Martyrologies do not report the existence of a bishop, a bishop and martyr, or just a martyr named Perseo or Petreio.Cappelletti, XVI, p. 366. Pius Gams both italicizes the name Perseus and puts it in parentheses, indicating grave suspicion.Gams, Series episcoporum, p. 766.

Ughelli then reports the existence of a Bishop Catanus, Corsicanus episcopus, who attended the Synod of Arles in 314. Neither the name nor the diocese of Mariana occurs, however, in the list of those who attended the Synod.J.D. Mansi (ed.), Sacrorum Conciliorum nova et amplissima collectio editio novissima, Tomus secundus (2) (Florence 1759), pp. 476–477.

Ughelli thirdly reports the existence of Bishop Leo of Corsica, on the authority of letters of Pope Gregory I and the Sacra Corsicae Chronica of Salvatore Vitale. Bishop Leo did exist, but Pope Gregory addresses him as episcopus in Corsica, bishop in Corsica, not bishop of Corsica.Gregory I, Epistolarum Liber I, no. 78 (sometimes numbered 76), in: J. P. Migne (ed.), Patrologiae Latinae Tomus LXXVII (Paris 1862), pp. 532–533. Leo had been sent by the Pope as an Apostolic Visitor, since, as the Pope notes, the dioceses of Corsica had long been vacant.Gregory (Epistles I, no. 80; Migne, p. 533) writes to the clergy and nobility of Corsica: Gregorius clero et nobilibus Corsicae a paribus. Etsi vos multo iam tempore sine pontifice esse Dei ecclesiae non doletis, nos tamen de eius regimine cogitare et suscepti cura compellit officii.... He announces that he is sending a second bishop to work with Bishop Leo, Martinum fratrem et coepiscopum nostrum ibidem cardinalem constituere sacerdotem, Leoni vero fratri et coepiscopo nostro operam eius visitationis iniungere.

The fourteenth century was a period of extreme crisis in Corsica. Roger Caratini notes that the population of ordinary people on the island had decreased by 8% between 1300 and 1350, mostly by migration to the territory of Pisa; then came the Black Death; between 1350 and 1400 the population decreased another 19%. The ability to maintain traditional institutions in the face of the new Genoese overlords was greatly compromised.

In 1453 Pope Nicholas V entered into a verbal agreement with the Republic of Genoa, which specified that, although the Pope maintained the exclusive right to appoint bishops on the Island of Corsica, he would appoint only Genoese subjects who were acceptable to the Government. The Genoese government turned the island over to the administration of the Genoese Banco di S. Giorgio, under new statutes for Corsica were issued, the Capitula Corsorum, which specified that bishops on the island had to be natives of the island. In 1464, however, the Republic of Genoa came under the domination of the Duchy of Milan, and it was the Milanese who decided appointments. In 1479 the Milanese were compelled to evacuate Corsica, and their regulations were nullified.

In 1563, considering the extreme poverty of the diocese of S. Pietro de Accia, which could no longer support a bishop, Pope Pius IV joined the diocese with the diocese of Mariana, with the new title of Bishop of Mariana and Accia.

During the French Revolution, the National Constituent Assembly reformed the Church in France, drawing up the Civil Constitution of the Clergy (12 July 1790).Text of Civil Constitution of the Clergy (in English) Retrieved: 2016-11-13. All clergy were obliged to swear an oath of allegiance to the Constitution, thereby effectively entering into a schism with the Papacy and the Roman Catholic Church. The number of bishoprics in France was dramatically reduced. The five bishoprics on the island of Corsica were suppressed and combined into one, to be called the diocèse de Corse.

When the electors of Corsica assembled, they elected Ignace-François Guasco, Provost (or Dean) of the Cathedral Chapter of Mariana as their 'Constitutional Bishop'. The canonical bishop Verclos made his protest and fled to the mainland of Italy. Guasco was consecrated at Aix on 16 June 1791 by Constitutional Bishop Charles-Benoît Roux, Metropolitan of Bouches-de-Rhône; the consecration was valid but illicit and schismatic. On 11 August 1793, judging that the territory of Corse was too large, the National Convention in the Constitution of 1793 divided both the department and the diocese of Corse into two, Golo (Guasco, resident at Ajaccio) and Liamone, and ordered a second bishop to be elected for the northern and eastern part of the island. Before this could be done, however, the British seized the island, and on 23 December 1793, Guasco recanted and resigned. Bishop Verclos immediately returned to Corsica.

In November 1801, the decision was taken by Pope Pius VII in implementing the Concordat of 1801 not to alter the situation in Corsica which had been imposed by the French Revolution. All of the dioceses remained suppressed, with the exception of Ajaccio, which had been the center of the 'Constitutional Bishop of Corse' and which was coincidentally the birthplace of the First Consul, Napoleon Bonaparte.

In April 2002 the title Bishop of Mariana in Corsica (though not the diocesan apparatus) was revived.David M. Cheney, Catholic-Hierarchy, Mariana in Corsica (titular see), retrieved: 2016-11-15. It has been used to qualify a priest as an auxiliary bishop, and to reward a domestic prelate in the Papal Household. The titular see of Accia was separately revived in 1968.David M. Cheney, Catholic-Hierarchy,Accia (titular See), retrieved: 2016-11-15.

Bishops Diocese of Mariana

... Donatus (attested 649)Bishop Donatus attended the Lateran Council of 649. Ughelli, IV, p. 1000. J.D. Mansi (ed.) Sacrorum Conciliorum nova et amplissima collectio editio novissima, Tomus decimus (10) (Florence 1764), p. 867. Lunergius (attested 900 or 909)Lunergius subscribed a donation of Berengar, King of Corsica, to the monastery of Mons Christi. Ughelli, p. 1000. Gams, p. 766. Lotherius (attested ca. 940)Lotherius subscribed an instrument of Atto, Bishop of Vercelli (924–961). Ughelli, p. 1000. Gams, p. 766.

... Guilelmus (1123)Gams, p. 766. Petrus (1158) Josephus (attested in 1179)Josephus was present and subscribed the decrees of the Lateran Council of Pope Alexander III in 1179. J.D. Mansi (ed.), Sacrorum Conciliorum nova et amplissima collectio editio novissima, Tomus vigesimus secundus (22) (Venice 1778), p. 215. PandulfusEubel, I, p. 325. (1242) Opizo Cortineo (ca. 1260) Adam (ca. 1320) Vincentius, O.Min. (1 December 1329 – ? ) Benvenutus de Fabriano, O.Min. (9 June 1343 – ? ) Dominicus de Campotaxio (ca. 1350) Raimundus, O.P. (10 June 1351 – 1352)Eubel, I, p. 325, notes that Raimundus never took possession of the See. Giovanni da Castello (7 January 1353 – 1364) Pietro Raimundi, O.Carm. (10 April 1364 – 1366) Nicolò Ligur (8 June 1366 – ? ) Bonaventura (ca. 1380) (appointed by Urban VI of the Roman Obedience) Giovanni d'Omessa (11 February 1388 – 1428) (appointed by Urban VI of the Roman Obedience) Dominicus de OrbitelloDomenico was a cleric of the diocese of Soana, and was a Doctor of Canon Law. Eubel, I, p. 325, with note 5; II, p. 185. (19 April 1428 – 1434) Giorgio Fieschi (Flisco)Fieschi, a member of the family of the Counts of Lavagna, had been a Canon of Genoa. He was Archbishop of Genoa from 1436 to 1439. He was promoted to the Cardinalate by Pope Eugene IV on 18 December 1439, and assigned the titular church of Sant'Anastasia. He died on 8 October 1461. Eubel, II, pp. 8, 167 and 185. (10 May 1434 – 3 Oct 1436) (Appointed Archbishop of Genoa) Michele de Germanis de Portu Mauritii (19 November 1436 – 1458)Michele de' Germani was a native of Porto Maurizio in the diocese of Albenga. He was assassinated. Cappelletti, p. 372. Eubel, II, p. 185. Girolamo de Montenigro, O.P. (21 July 1458 – 1464)Fr. Girolamo was a professor of theology. Cappelletti, p. 372. Leonardo Fornari (11 January 1465 – 1494)Leonardo de' Fornari was a native of Genoa and a Doctor of Canon Law. He was assassinated by enemies of the Republic of Genoa. Cappelletti, p. 372. Eubel, II, p. 185. Ottaviano FornariOttaviano Fornari was a Genoese patrician, and a Cleric of the Apostolic Camera (papal ministry of finance) and datary; he had been one of the seven prelates charged with judging fiscal cases. He died at the age of thirty-six. Cappelletti, p. 373. Eubel, II, p. 185. (20 Jan 1495 - 1500 Died) Giovanni Battista Usumari (1500 – 1512) Giovanni Battista Cibo (1512 – 1531)Bishop Cibo attended most of the sessions of the Fifth Lateran Council. Eubel, III, p. 235. Cardinal Innocenzo Cibo (Cybo), AdministratorInnocenzo Cibo was not the bishop. He never received episcopal consecration, so far as is known. (20 Mar 1531 – 1 Dec 1531 Resigned) Cesare Cibo (1 December 1531 – 22 June 1548)Cesare Cibo was too young to be consecrated bishop when appointed; he was therefore only Administrator of Mariana for a number of years. He was promoted to the Archbishopric of Turin on 22 June 1548. He died on 26 December 1562. Eubel, III, pp. 235 and 309. Ottaviano Cibo (22 June 1548 – 1550)Ottaviano Cibo was the brother of Bishop Cesare Cibo. Eubel, III, p. 324. Balduino de Balduinis (17 Dec 1550 – 30 March 1554) (Appointed Bishop of Aversa)Eubel, III, pp. 126 and 235. Cardinal Giovanni Battista Cicala (Cicada), Administrator.Eubel, III, p. 235. The Cardinal governed through his Vicar General, the Milanese Giovanni Battista Buttinone: Anton Pietro Filippini, Istoria di Corsica seconda edizione, Tomo IV (Pisa: Capurro 1834), p. 283. (30 Mar 1554 – 13 Sep 1560 Resigned) Nicolo Cicala (13 Sep 1560 - 1563)Niccolò was a brother of Cardinal Cicala. The Cardinal was under pressure, thanks to the newly promulgated decrees of the Council of Trent which required a bishop to reside in his diocese; he therefore resigned his charge in favor of his brother. Filippini, IV, pp. 291–292. Niccolò was appointed Bishop of Accia and Mariana.

Diocese of Mariana and Accia

Giovanni Battista Centurioni (4 September 1570 – 1584)Centurioni built the diocesan seminary, in accordance with the decrees of the Council of Trent. Gams, p. 766. Nicolaus Mascardi (9 April 1584 – 1599)Mascardi: Eubel, III, p. 235. Hieronymus de Puteo (dal Pozzo) (29 November 1599 – 11 July 1622)Del Pozzo: Gauchat, IV, p. 232. Iulius de Puteo (dal Pozzo) Giovanni Agostino Marliani Carlo Fabrizio Giustiniani (10 January 1656 – 1 September 1682)Ritzler, V, p. 256, note 2. Agostino Fieschi, O.Theat. (14 June 1683 – 28 May 1685)Fieschi was born in Genoa. He had been Provost of the convent of S. Antonio in Rimini. He was consecrated in Rome by Cardinal Alessandro Crescenzio on 20 June 1683. Ritzler, V, p. 256 with note 3.