The Diocese of Jesi () is a Latin Church diocese of the Catholic Church in the Marche, Italy. It is a suffragan of the archdiocese of Ancona-Osimo."Diocese of Iesi" Catholic-Hierarchy.org David M. Cheney. Retrieved February 29, 2016. "Diocese of Jesi" GCatholic.org. Gabriel Chow. Retrieved February 29, 2016.

History Saint Septimius, supposedly martyred in 307, has been venerated as the first bishop of Jesi since the 15th century.There is no reference to him whatever until 1469. Joannes Periero, S.J., "De S. Septimio episc. et mart.", in: Acta Sanctorum Septembris Tomus VI (Antwerp: Bernard vander Plassche 1757), pp. 408-410. Saint Florianus, who was cast into the Esino in the Diocletian persecution, is also venerated (perhaps he is confounded with Saint Florianus who was cast into the Enus or Anisus). Other bishops of antiquity were Calumniosus (c. 647) and Honestus. Their relics were discovered in 1623.

The future emperor Frederick II was born in Jesi on 26 December 1194. His mother, Constance, Queen of Sicily, was on her way to join her husband, Henry VI, who had been crowned King of Sicily at Palermo on the previous day. At Jesi she was overcome by sudden labor pains, and, anticipating the birth of an heir, the people erected a pavilion for her in the town square, so that the birth might take place amid a large complement of witnesses. Fifteen cardinals and bishops witnessed the birth of the baby Frederick.Albert of S. Maria in State, Annales Stadenses, in: Monumenta Germaniae Historica, Scriptores XVI (Hannover: Hahn 1859), p. 352.

On 30 May 1247, Pope Innocent IV rejected the election of one of the Canons of the Cathedral Chapter, Armannus, as bishop of Jesi, on the grounds that the Canons were excommunicated due to their support of the Emperor Frederick II. One Canon, however, named Montanario, was loyal to the Holy See and had escaped to Ancona from Jesi; he notified the Pope that he elected the Franciscan Gualterio. Innocent ordered the Rector of the March of Ancona, Marcellino Aretino, and Bishop Philip of Fermo to investigate the election and consult with Canon Montanario, and provide the new bishop. Baldassini, p. 57, and Appendix pp. xviii-xix. The Franciscan Gualtiero, an Englishman, was appointed. He was a friend of John of Parma, general of the order and patron of the Franciscan Spirituals.Gualterius is spoken of by Salimbene as "bonus cantor, bonus praedicator, bonus dictator." Fra Salimbene of Parma, Chronica Fr. Salimbene Parmensis Ordinis Minorum (Parmae : Ex officina Petri Fiaccadorii, 1857), pp. 317-319 (under the year 1284). By dictator, Salimbene means that Gualterius was a good writer.

Bishop Severinus in 1237 laid the foundations of the new cathedral;Ughelli, I, p. 282. the old cathedral, dedicated to Saint Nicholas of Myra, was outside the city, and in the eighteenth century had fallen into ruin.Baldassini, p. 159. In its current form, the cathedral is the result of restorations and renovations carried out by Bishop Antonio Fonseca.Baldaassini, p. 382.

The cathedral was and is administered by a Chapter, composed of a Prior and ten Canons.Cappelletti, p. 313. Ritzler-Sefrin, V, p. 71 note 1; VI, p. 68 note 1. Diocesi di Jesi, Guida diocesana 2018 (Press the gray bar entitled "Scarica la Guida Diocesana"), page 9; retrieved: 5 March 2019. Up until the middle of the 15th century the Canons were required to live in the Canonica, unless individually dispensed. Pope Paul II (1464–1471) dispensed the Canons from this obligation.Baldassini, p. 342. The best-known of the Canons was Marcello Cervini, who became Pope Marcellus II (1555).Baldassini, p. 343.

Gabriele del Monte (1554) introduced the reforms of the Council of Trent, which he had attended. His successors were Cardinal Camillo Borghese (1597), afterwards Pope Paul V; Cardinals Tiberio Cenci (1621) and Alderano Cybo (1656), noted for their benefactions; Bishop Antonio Fonseca (1724), who founded a hospital. Cardinal Caprara, afterwards Archbishop of Milan, who concluded the Concordat with Napoleon, was Bishop of Jesi (1800–02). He was succeeded by Antonio Odescalchi, who was deported to Milan by the French in 1809, dying in exile in Cesano Boscone in 1812.Umberto Benigni (1910), "Jesi." The Catholic Encyclopedia Vol. 8. (New York: Robert Appleton Company, 1910); retrieved: 28 February 2019.

On 15 August 1972, by the Bull Qui apostolico officio, Pope Paul VI created the new ecclesiastical province of Ancona, and granted its archbishop the status of Metropolitan. The ecclesiastical province was assigned the suffragan dioceses of Jesi (Aesina) and Osimo (Auximana).Acta Apostolicae Sedis An. et Vol. LXIV (Città del Vaticano: Typis Polyglottis Vaticanis 1972), pp. 664-665.

Synods

A diocesan synod was an irregularly held, but important, meeting of the bishop of a diocese and his clergy. Its purpose was (1) to proclaim generally the various decrees already issued by the bishop; (2) to discuss and ratify measures on which the bishop chose to consult with his clergy; (3) to publish statutes and decrees of the diocesan synod, of the provincial synod, and of the Holy See. John Paul II, Constitutio Apostolica de Synodis Dioecesanis Agendis (March 19, 1997): Acta Apostolicae Sedis 89 (1997), pp. 706-727.

Bishop Marco Agrippa Dandini (1599–1603) held a diocesan synod in Jesi on 16 September 1600.Marco Agrippa Dandini, Decreta in Diocesana Synodo Aesina promulgata a perillustr. et Reverendissimo d. d. Marco Agrippa Dandino, Nob. Caesenate Dei et Apostolicae Sedis gratia Episcopo Aesino. Die 16 Septembris 1600 (Jesi: Petrus de Farris 1600). Bishop Tiberio Cenci (1621–1653) held a synod on 10 May 1626,Decreta Synodi dioec. celebratae sub Illustriss. et reverendiss. d. d. Tyberio Cincio, Episc. Aesin., die decima mensis Maij MDCXXVI (Jesi: Gregorius Arnazzini 1626). and, as Cardinal, another synod on 23 September 1649.Constitutiones sancitae in synodo dioecesana ab Eminentiss. et Reverendiss. D. D. Tiberio, tit. S. Callisti S. R. E. Presbytero Cardinali, Cincio, Episcopo Aesino, die XXIII septembris M.DC.XXXXIX (Fermo: Andrea de Montibus 1649). Cardinal Alderano Cybo (1656–1671) held a diocesan synod in Jesi from 4 to 6 July 1658. Cardinal Pietro Matteo Petrucci held his first diocesan synod on 26—28 April 1683. He held his second diocesan synod in Jesi on 21 March 1695. J.-D. Mansi (ed.), Sacrorum Conciliorum nova et amplissima collectio, editio novissima, Tomus XXXVIter (Arnhem & Leipzig: H. Welter 1924), pp. 469, 495, 659.

On 23 April 1708, Bishop Alessandro Fedele (1696–1715) held a diocesan synod, whose decisions were published in 1713.Synodus dioecesana ab illustriss. ac Reverendiss. d. Alexandro Fideli, Dei et Apostolicae Sedis Episcopo... in ecclesia cathedrali sub die 23 Aprilis celebrata, anno a reparata salute 1708 (Jesi: Alexandrelli et Benedicti 1713). Bishop Antonio Fonseca held a diocesan synod in the Cathedral on 25 to 27 May 1727. The synodal decrees were published. He held a second diocesan synod on 26 and 27 September 1741, and its constitutions too were published. From 14 June to 16 June 1772, Bishop Ubaldo Baldassini, B. (1764–1786) held a diocesan synod, and published its synodal constitutions.Sanctae Aesinae Ecclesiae Synodales Constitutiones ab illustrissimo et reverendissimo domino Domino Ubaldo Baldassino, Dei et Apostolicae Sedis gratia Episcopo Aesino... in dioecesanis comitiis editae diebus XIV, XV, XVI Junii, anno reparatae slautis MDCCLXXII (Jesi: Pietro Paolo Bonelli 1772).

Cardinal Carlo Luigi Morichini (1854–1871) presided over a diocesan synod on 15—17 November 1857.Synodus dioecesana ab Eminentissimo et Reverendissimo Domino Carolo Aloysio Tituli S. Onuphrii S. R. E. Presbytero Cardinali Morichini Archipeiscopo Episcopo Aesino, celebrata in Ecclesia Cathedrali diebus xv, xvi, xvii novembris MDCCCLVII. (Aesii: Vincentius Cherubini 1857).

Bishop Oscar Serfilippi (1978–2006) held a diocesan synod in Jesi on 24 January 1982.Find a Grave, "Rev. Oscar Serfilippi"; retrieved: 9 March 2019.

Bishops of Jesi to 1100

... ? SeptimiusThere is no reference to Septimius before 1469. Lanzoni, pp. 491-492: Prima del 1469 nessuna carta, nessuna memoria, nessun monumento di Iesi parla di un s. Settimio venerato nella cattedrale o in altro luogo; e la stessa cattedrale non era denominata da lui, ma dal SS. Salvatore.... ... [Martianus (501)]Martianus is listed as a bishop of Jesi by Gams, p. 700, but Lanzoni, p. 492, points out that he was actually Bishop of Aeca (Aecanus, not Aesinus). ... Calompiosus (c. 647)He is also called Calcompios and Calumniosus. Gams, p. 700. Honestus (attested 680)Gams, p. 700. J.-D. Mansi (ed.), Sacrorum Conciliorum nova et amplissima collectio, editio novissima, Tomus XI (Florence: A. Zatta 1773), p. 773. Petrus (attested 743)Bishop Petrus was present at the first Roman synod of Pope Zacharias. Ughelli, I, p. 282. J.-D. Mansi (ed.), Sacrorum Conciliorum nova et amplissima collectio, editio novissima, Tomus XII (Florence: A. Zatta 1776), p. 384c: Petrus Esis, Petro Esino. ... Anastasius (attested 853)Bishop Anastasius did not attend the Roman synod of Pope Leo IV of 853, but he sent his deacon, Aimo, to represent him. J.-D. Mansi (ed.), Sacrorum Conciliorum nova et amplissima collectio, editio novissima, Tomus XIV (Venice: A. Zatta 1769), p. 1020. Cappelletti, VII, p. 277. ... Eberhard (attested 967)Bishop Eberhard was present at the Synod of Ravenna on 25 April 967. Gerhard Schwartz (1907), Die Besetzung der Bistümer Reichsitaliens unter den sächsischen und salischen Kaisern: mit den Listen der Bischöfe, 951-1122. Leipzig: B.G. Teubner. p. 247. (in German) ... [Martianus (attested 1027)]Martianus was Bishop of Cesena, not Jesi. Schwartz, p. 247, note 1. Detlev Jasper, Die Konzilien Deutschlands und Reichsitaliens 1023 - 1059 MGH Concilia VIII (Hannover: Hahn 2010), p. 93. ...

from 1100 to 1500

Raynaldus (1164–1175)Gams, p. 700. Grimoaldus Crescentius (attested 1207)Baldassini, p. 367. Gams, p. 700. Eubel, Hierarchia catholica I, p. 75 PhilippusPhilippus: Cappelletti, VII, p. 279. Severinus (attested 1230, 1235, 1237)Severinus is named in an inscription of 1237 on a marble plaque above the main door of the cathedral. Ughelli, p. 282. Cappelletti, VII, p. 279. Armannus (Hermannus)Armannus was never more than an intrusive bishop-elect. He was elected by the Cathedral Chapter, but the Chapter had been excommunicated and had no right to participate in an election. His election was quashed by Pope Innocent IV on 30 May 1247. Gualterus, O.Min. Crescentius (1252–1263)Eubel, I, p. 75. Bonajuncta, O.Min. (1263–1267) Hugo (1267– ) Ioannes (1289–1295)Ioannes: Gams, p. 700 column 2. Eubel, I, p. 75. Leonardus (1295–1311)Leonardo: Gams, p. 700 column 2. Eubel, I, p. 75. Francesco Alfani (1312–1342)Francesco: Gams, p. 700 column 2. Eubel, I, p. 75. Francesco Jordani Brancaleoni (1342–1350)Francesco was a native of Spoleto. He was appointed Bishop of Jesi by Pope Clement VI on 18 July 1342. Gams, p. 700 column 2. Eubel, I, p. 75. Nicolaus de Pisis, O.E.S.A. (1350–c. 1370)Bishop Nicolaus was still in office in 1361. Cappelletti, p. 288. Eubel, I, p. 75, states that he served until his death, but does not give a date. Giovanni Zeminiani Rizardi, O.P. (1371–1373) Berardus de Beysiaco, O.E.S.A. (1373–1391?)Ughelli, I, p. 283, calls him Bernardus, and states that he died in 1391. ? Pietro Borghese (? attested c. 1380)Pietro is said to have belonged to the famous Sienese family. He may have been intruded during the Western Schism. Knowledge of him comes only from an entry in Prospero Mendosio, citing an entry in Ugurgerio's De ponpis Senensibus, who quotes from a genealogical work on the family by Celsus Cittadinus. Ughelli, pp. 282-283. Baldassini, p. 370.