Ancient Teurnia was situated on a wooded hill at the village of St. Peter-in-Holz in the municipality of Lendorf in the Lurnfeld valley, four kilometres to the west of Spittal an der Drau in Upper (i.e. western) Carinthia, Austria. As early as 1100 B.C. people had lived there on Holzerberg hill, which may well have also seen the centre of the Celtic Taurisci nation before c. 50 A.D. the Roman town was built with a forum, a market basilica, a temple on the city's Capitol, Thermae or public baths, terraced housing on two terraces , and a temple dedicated to Grannus, the Celtic counterpart deity of Aesculap, god of medicine and healing, but in Teurnia invoked as Grannus Apollo. Usually older hill-top settlements were moved by the Romans to lower-lying areas with the one exception of the oppidum at Teurnia in the tribal region of the Ambidravi, where old names are said to have been retained and no renaming took place.
Teurnia was one of the largest places in all Noricum with, in its peak period, a population of 30,000. Towards the end of the Empire the population decreased; people left the housing terraces, and the slopes being no longer suitable for agriculture were used as cemeteries. At the same time walls went up surrounding the hilltop with material from the deserted houses.
By the 4th century Teurnia was already a Christian town and was a bishop's see until the city's decline and its end in 610. From the vita Severini by Eugippius of the year 511 A.D. we learn that Severinus, the “apostle to Noricum”, was in contact with a bishop of Tiburnia/Teurnia by the name of Paulinus. From the fact that said Paulinus wrote admonishing letters to the communities of his see we may assume that he was the metropolitan bishop of the province. Thus Teurnia may well be presumed to have truly succeeded Virunum as the provincial capital city in the Migration Period. The last mention of the city and diocese of Tiburnia is from 591 in a letter of the Venetic and Rhaetic bishops.
Holzerberg hill was a well-known place of antique finds as early as the Middle Ages. Many spolias of buildings in the area come from here. Interest in the Roman finds increased duríng and after the Renaissance, but it took a long time until the ruins were identified as the city of Teurnia or Tiburnia known from antique sources. Professional excavations began with the accidental discovery of the cemetery church in 1908. The mosaic of its donor, the praeses or governor Ursus, in the right side-chapel of the three-naved basilica is in near-perfect preservation. In twelve pictures the mosaic shows christological, mythological and biblical symbols as well as the names of one Ursus, the donor, and his spouse, Ursina.
In 1984 the Early-Christian bishop's church was discovered, which has now been roofed over and is open to visitors. The church walls have been preserved up to a height of six feet and show mural paintings. Excavations were also made along the southern side of the church, where a marble tablet and parts of a cross were unearthed. Earlier guesses had been that the bishop's church was beneath today's parish church, but from historic comparisons Franz Glaser, who is in charge of the Teurnia excavations, deducted the actual position along the western city walls. The episcopal church was built at the beginning of the fifth century and a century later, after a destructive fire, was rebuilt in basilica style with three naves and three apses. In analogy to the Hemmaberg situation in Lower (i.e. eastern) Carinthia, here too the bishop's church might have served the Catholic community, whereas Arians used the cemetery church for their services.
In the village centre of St. Peter-in-Holz there is a recent “Römer-Museum” exhibiting numerous artefacts from the city area of Teurnia. Nearby are the preserved remains of a Roman town villa or villa urbana boasting a simple hypocaust in form of the letter Y. Next to the bishop's church the Hospitium, the bishop's guest house, was found, but for protection purposes it has been covered with soil again. More excavation work is going on. Information on the city's history and the excavation work is provided in display cases all over the area.
Titular Bishops and Archbishops
- Emilio Benavent Escuín, Titular Archbishop of Tiburnia (26 August 1968 – 3 February 1974; born in Valencia 10 April 1914, died 4 January 2008;
was ordained priest 18 July 1943, was appointed Auxiliary Bishop of Málaga and Titular Bishop of Cercina 6 Dec 1954 and was ordained bishop 13 Feb 1955, was appointed Coadjutor Bishop of Málaga 13 Feb 1960 and appointed Bishop of Málaga 7 April 1967 , was appointed Titular Archbishop of Tiburnia and Coadjutor Archbishop of Granada, Spain, 26 Aug 1968, succeeded the Archbishop of Granada, Spain 3 Feb 1974, was appointed Archbishop (a personal title) of Spain for the Military and Titular Archbishop of Maximiana in Numidia 25 May 1977, resigned as Bishop of Spain for the Military 27 Oct 1982, resigned as Titular Archbishop of Maximiana in Numidia 7 March 1998, died as Bishop Emeritus of Spain for the Military 4 Jan 2008
- Donato Squicciarini, Titular Archbishop of Tiburnia 31 August 1978 – 5 March 2006; born in Altamura, Italy, 24 April 1927, died 5 Mar 2006
as Apostolic Nuncio Emeritus to Austria; was ordained priest 12 April 1952, was appointed Titular Archbishop of Tiburnia and Apostolic Nuncio to Burundi on 26 November 1978, was ordained bishop and titular Archbishop of Tiburnia 26 Nov 1978, was Apostolic Pro-Nuncio to Gabon, Cameroun, and Equatorial Guinea from 1981 till 1989, and Apostolic Nuncio to Austria from 1 July 1989 till retirement on 8 Oct 2002.
- Víctor René Rodríguez Gómez, Titular Bishop of Tiburnia since 13 May 2006; born 17 Nov 1950 in San Martín de las Pirámides (Mexico);
was ordained priest 21 Nov 1976, was appointed Titular Bishop of Tiburnia and Auxiliary Bishop of Texcoco, México, 13 May 2006; was ordained Bishop of Tiburnia 25 July 2006, is Auxiliary Bishop of Texcoco see, Mexico.
- Barley, Maurice Willmore,European towns: their archaeology and early history. Published for the Council for British Archaeology. New York: Academic Press, 1977 ISBN 0-120-78850-0
- Glaser, Franz, Teurnia: Römerstadt und Bischofssitz Klagenfurt: Verlag des Geschichtsvereins 1992 (German)
- Glaser, Franz, Frühchristliche Denkmäler in Kärnten, Klagenfurt: Verlag des Geschichtsvereins 1996 (German)
- Glaser, Franz, Römermuseum Teurnia - Texte und Zeichnungen, Klagenfurt: Verlag des Geschichtsvereins 2002 (German)
- Gugl, Christian, Archäologische Forschungen in Teurnia: die Ausgrabungen in den Wohnterrassen 1971-1978 : die latènezeitlichen Funde vom Holzer Berg, Vienna: Österreichisches Archäologisches Institut, 2000(German)
- Gugl, Christian, Das Umland Teurnias vom 2. Jahrhundert v. Chr. bis ins 1. Jahrhundert n.Chr. Eine Studie zur Siedlungskontinuität von der Latène- zur Römerzeit im oberen Drautal.In: Arheološki Vestnik (ACTA ARCHAEOLOGICA) 52 (2001) Ljubljana: Slovenska akademija 2001, pp. 303–349 ISSN 0-570-8966 English Abstract
- Michael Doneus,Precision mapping and interpretation of oblique aerial photographs (= Archaeological Prospection Vol.8, Issue 1) Hoboken NJ: John Wiley & Sons, 2001 pp. 13 – 27,
- Kos,Marjeta Šašel, Pre-Roman divinities of the eastern Alps and Adriatic, Ljubljana: Narodni muzej Slovenije, 1999, ISBN 9616169114