page_title: Roman Catholic Diocese of Liège
section_title: Origins of the diocese
hierarchical_section_title: Roman Catholic Diocese of Liège / Origins of the diocese
caption_attribution_description: English: This is a map showing the old Catholic dioceses, which were to some extent based upon ancient Roman and pre-Roman territories.
context_page_description: The Roman Catholic Diocese of Liège is a diocese of the Latin Rite of the Roman Catholic church in Belgium. The diocese was erected in the 4th century, and has a long and complicated history. Currently the diocese is a suffragan of the Archdiocese of Mechelen-Brussels. Its modern version covers the same territory as the Belgian province of Liège, but it was historically much larger.
context_section_description: The original diocese was the church equivalent of the Civitas Tungrorum, the capital of which was Tongeren, northwest of Liège, and its borders were probably approximately the same.
  The bishopric of Tongeren originally formed part of the dioceses of Trier and Cologne. After the first half of the fourth century, the bishopric of Tongeren received autonomous organization. In late antiquity, the centre of administration and religion in the area moved first to Maastricht, and then to Liège.
  The boundaries were formed, to the North, by the diocese of Utrecht; to the East, Cologne; to the South, the dioceses of Trier and Reims; to the West, that of Cambrai. Thus the diocese of Tongeren extended from France, in the neighbourhood of Chimay, to Stavelot, Aachen, Gladbach, and Venlo, and from the banks of the Semois as far as Ekeren, near Antwerp, to the middle of the Isle of Tholen and beyond Moerdijk, so that it included both Romance and Germanic populations. The boundaries remained virtually unchanged until 1559.
  Legend has it that the first bishop of Tongeren was Saint Maternus. This may refer to the legendary founder of the Archbishopric of Cologne, Maternus I, or Saint Maternus (Maternus II), who was also bishop of Cologne. Saint Servatius was the first confirmed bishop of Tongeren-Maastricht-Liège, who was referred to in documents as bishop of the Tungri. He died around 384 and was buried outside the Roman castrum in Maastricht. One of his successors, probably in the 6th century, moved the see of the bishopric to Maastricht. The conversion of the Franks continued under Falco (around 500 AD) and continued under Saint Domitian, Saint Monulphus and Saint Gondulphus (6th/7th centuries). Monulphus built a church over the grave of Saint Servatius in Maastricht, which later became the Basilica of Saint Servatius. During the whole of the seventh century the bishops had to struggle against paganism and opposition. St Amandus (647–650) and St Remaclus (650–660) even abandoned the episcopal see in discouragement. Both built several monasteries. St Theodard (660–669) died a martyr.
  St Lambert (669–700) completed the conversion of the pagans in the Ardennes region. He was murdered at Liège around 705. Lambert was regarded as a martyr for his defence of church property against the avarice of the neighbouring lords. His successor, St Hubert, transferred the body of St Lambert to Liège, which was then a small settlement, a vicus, named Vicus Leudicus. On his grave Hubert built a chapel (St. Lambert's Cathedral) which became the nucleus of the city, and near which the permanent residence of the bishops was established.
  Agilbert (768–784) and Gerbald (785–810) were both appointed by Charlemagne. Hartgar built the first episcopal palace. Bishop Franco, who defeated the Normans, is celebrated by the Irish poet Sedulius Scottus. Stephen (908–920), Richaire (920–945), Hugh (945–947), Farabert (947–958) and Rathier were promoted from the cloister school. To Stephen, a writer and composer, the Catholic Church is indebted for the feast and the Office of the Blessed Trinity. Ratherius absorbed all the learning of his time. Heraclius, who occupied the see in 959, built four new parish churches, a monastery, and two collegiate churches, he inaugurated in his diocese an era of great artistic activity known as Mosan art.
  All these bishops, until the end of the Middle Ages, continued to call themselves bishops of the church of Tongeren, or sometimes bishops of Tongeren-Maastricht or Tongeren-Liège, Tongeren in this case referring to the old civitas of Tongeren, rather than the town.
caption: This map shows the pre-1559 medieval Diocese of Liège (in green) which evolved from the Civitas Tungrorum and probably had similar boundaries.
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