Ancient bishopric According to legend, the Gospel was preached at Sipontum by
Saint Peter and by
Saint Mark. Another tradition relates the martyrdom of the priest
Saint Justin and his companions under
Gallienus and
Maximian, about 255. A bishopric of Sipontum (or Siponto) was established around 400 AD (or already in the third century according to others). The first bishop whose date may be fixed, was Felix, who was at Rome in 465. Another legend reports that, in the time of bishop
Laurence of Siponto, during the papacy of
Gelasius I (492-496), the archangel
Saint Michael appeared on
Monte Gargano; in memory of the event, the
Monastery of the Archangel was founded. Among the pilgrims were the emperors Otto III, Henry II, and Lothar III, and popes Leo IX, Urban II, and et Alexander III. A bishop Felix is attested in 591 and 593, and a bishop Vitalianus in 597 and 599. By about 688, Siponto was almost abandoned. The diocese was suppressed, and
Pope Vitalian was obliged to entrust the pastoral care of Sipontum to the
bishopric of Benevento.
New (arch)bishopric The see was re-established in 1034 as
Diocese of Siponto, recovering its territory from the meanwhile Metropolitan
Archdiocese of Benevento. Bishops of Siponto, suffragans of Benevento, included Bonus (1049? – 1059?) In April 1050,
Pope Leo IX held a synod at Siponto, at which he deposed two archbishops, who were charged with simony. In August 1059, at the Synod of Melfi,
Pope Nicholas II deposed the archbishop of Trani and bishop of Siponto. Archbishop Johannes of Trani, in his tomb inscription claimed to be "Archiepiscopus Tranensis, Sipontinensis, Garganensis Ecclesiae, atque Imperialis Synkellus." Bishop Guisard is attested in 1062. Under bishop Gerardus Gerard (1066–74), Siponto became the non-Metropolitan
Archdiocese of Siponto in 1074. In 1090, the diocese of Siponto lost territory to establish the
Diocese of Vieste. In 1099 Siponto was promoted to the rank of
Metropolitan Archdiocese of Siponto Cathedral The ancient cathedral remained still at Sipontum but, with the building of
Manfredonia city by and named after King
Manfred of Sicily, who decided to rebuild Siponto in a new nearby location, the archiepiscopal see was transferred to the new town in 1230, under its new title Metropolitan
Archdiocese of Manfredonia (viz.), yet still Sipontin(us) as Latin adjective. == See also ==