Jomsborg

Jomsborg or Jómsborg (german: Jomsburg) was a semi-legendary Viking stronghold at the southern coast of the Baltic Sea (medieval Wendland, modern Pomerania), that existed between the 960s and 1043. Its inhabitants were known as Jomsvikings. Jomsborg's exact location, or its existence, has not yet been established, though it is often maintained that Jomsborg was located on the eastern outlet of the Oder river. Historian Lauritz Weibull dismissed Jomsborg as a legend.

The only source that mentions a precise location of Jomsborg () is the controversial ''Gesta Wulinensis ecclesiae pontificum'' that was discovered in the autumn of 2019. Sven Rosborn (2021)
''The Viking King’s Golden Treasure: About the discovery of a lost manuscript, Harald Bluetooth´s grave and the location of the fortress of Jomsborg''
Rivengate AB, ISBN 9198678116

Location

Jomsborg is often thought to be identical with the present-day town of Wolin (also Wollin) on the southeastern tip of the isle of Wolin in northwestern Poland, probably located at Srebrna Góra hill north of the town. In the Early Middle Ages, modern Wolin was the site of a multi-ethnic emporium (then known as ''Jumne'' or ''Julin'').Jan M Piskorski, Pommern im Wandel der Zeiten, 1999, p.31, The Nordic sagas use "Jómsborg" exclusively, while medieval German histories use "Jumne" or "Julin", with the alternate names, some of which may be spelling variants, "vimne", "uimne", "Jumneta", "Juminem", "Julinum", "uineta", " Vineta" and "Vinneta".Johannes Hoops, Herbert Jankuhn, Heinrich Beck, ''Reallexikon der germanischen Altertumskunde Band 16'', 2nd edition, Walter de Gruyter, 2000, pp.120-121,

In 1931/32, Pomeranian historian Adolf Hofmeister (1883-1956) suggested, through comparison of the events reported by the different chronicles, that all these terms describe the same place, which is at or near the modern town of Wolin. However, this is by no means universally accepted; Professor and historian Steven Fanning writes: "The Trelleborg-type fortresses of Denmark have been taken to be actual examples of Jómsborg-style camps of such warriors and Wolin in Poland was believed to be the actual Jómsborg. However, all such attempts to locate Jómsborg or encampments of the Jómvikings have failed, leading many to doubt that Jómvikings ever existed outside of literature." According to Władysław Filipowiak there are several dated sources which attest to the presence of a company of armed Vikings at the end of the 10th century in Wolin, who may have been installed there as mercenaries by the Polish king Bolesław the Brave.

Other theories see Jomsborg in the northwest of nearby Usedom island, on lands now submerged.T. D. Kendrick, ''A History of the Vikings'', Courier Dover Publications, 2004, p.180, The small islands in this area are remnants of a long stretch of land between Usedom and Rügen, which fell victim to storm floods in the early 14th century. Suspected locations in this area are the Veritas grounds between the petty islands of Ruden and Greifswalder Oie, and the Peenemünde shoals. While Viking Age jewelry has been found at the site, archaeological evaluation of these theories has not yet been possible.T. D. Kendrick, ''A History of the Vikings'', Courier Dover Publications, 2004, p.181,

Fortress

According to the '' Knytlingasaga'' and '' Fagrskinna'', Jomsborg was built by the Danish king Harold Bluetooth (910-985/86) in the 960s.T. D. Kendrick, ''A History of the Vikings'', Courier Dover Publications, 2004, p.179, The Jomsvikinga Saga mentions Danish Viking Palnatoki as its founder.R. Chartrand, Magnus Magnusson, Ian Heath, Mark Harrison, Keith Durham, ''The Vikings: Voyagers of Discovery and Plunder'', Osprey Publishing, 2006, p.89,

In medieval records, Jomsborg is described as a fortress with a harbour. The harbour was overseen by a stone tower mounted with catapults, built on an arch spanning over the harbour entrance which could be closed by an iron gate.R. Chartrand, Magnus Magnusson, Ian Heath, Mark Harrison, Keith Durham, ''The Vikings: Voyagers of Discovery and Plunder'', Osprey Publishing, 2006, p.88, According to the oldest records, the harbour had space for three ships, later records give a capacity of up to 360 ships.

According to the '' Heimskringla'', Jomsborg was destroyed in 1043 by Dano-Norwegian king Magnus the Good. The fortress was burned down, and many of the inhabitants were killed.

Jomsvikings

The Jomsborg Vikings ( Jomsvikings) were composed of selected warriors, adhered to a special codex, and were loyal only to their leader. Most records list as jarl of Jomsborg, Sigvald(i), son of petty king Strut-Harald of then Danish Scania. Sigvald died some time before 1010.R. Chartrand, Magnus Magnusson, Ian Heath, Mark Harrison, Keith Durham, ''The Vikings: Voyagers of Discovery and Plunder'', Osprey Publishing, 2006, p.91,

Curmsun Disc

A golden disc bearing the name of Harald Bluetooth and Jomsborg appeared in Sweden in autumn 2014. The disc, also called the Curmsun Disc, is made of high gold content and has a weight of 25,23 gram. On the obverse there is a Latin inscription and on the reverse there is a Latin cross with four dots surrounded by an octagonal ridge. The inscription reads: "+ARALD CVRMSVN+REX AD TANER+SCON+JVMN+CIV ALDIN+" and translates as "Harald Gormsson king of Danes, Scania, Jomsborg, diocese of Aldinburg".

It is claimed that the disc was a part of a Viking hoard found in 1841 in the Polish village Wiejkowo near the town of Wolin by Heinrich Boldt, the maternal great-great-grandfather of Hollywood actors and producers Ben Affleck and Casey Affleck.

''Gesta Wulinensis ecclesiae pontificum''

A newly-discovered historical chronicle, ''Gesta Wulinensis ecclesiae pontificum'', in addition to providing details on the Jomsvikings and Jomsborg, attributes to Jomsborg a location near Paprotno, Poland, at . Swedish archaeologist Sven Rosborn has visited the location and confirms that it matches the descriptions of Jomsborg from the various sagas and chronicles, and that various artifacts found on the surface of the location seem to match the period of time in which Jomsborg existed.

Historical events

* Harald Bluetooth died at Jomsborg in 985/86.T. D. Kendrick, ''A History of the Vikings'', Courier Dover Publications, 2004, p.182,
*Styrbjörn the Strong of Sweden and a force of Jomsvikings departed from Jomsborg to reclaim the Swedish throne from Eric the Victorious, yet were defeated in the Battle of Fýrisvellir near Gamla Uppsala in the mid 980s, probably in 986.R. Chartrand, Magnus Magnusson, Ian Heath, Mark Harrison, Keith Durham, ''The Vikings: Voyagers of Discovery and Plunder'', Osprey Publishing, 2006, p.90,
*Sweyn Forkbeard and a force of Jomsvikings departed from Jomsborg to eliminate jarl Haakon Sigurdsson of Norway, but were defeated in the Battle of Hjörungavágr (~990).
*Olaf I of Norway and a Jomsviking contingent departed from Jomsborg for the Battle of Svolder in 999 or 1000 AD.

See also

* Early Swedish History
* Jomsvikings
* Pomerania during the Early Middle Ages

References

Related Reading

*Eddison, E. R. (2011) ''Styrbiorn the Strong'' (University of Minnesota Press)
*Halldórsson, Ólafur (2000) ''Danish Kings and the Jomsvikings in the Greatest Saga of Óláfr Tryggvason'' (Viking Society for Northern Research)
* Hollander, Lee M. (1989) '' The Saga of the Jomsvikings'' (University of Texas Press)
* Jones, Gwyn (2001) ''A History of the Vikings (2d ed.)'' (Oxford University Press)
*Kunkel, Otto.; Karl A. Wilde (1941) ''Jumne, Vineta, Jomsburg, Julin, Wollin'' (Stettin: Landesmuseum)
*Schmidt, Roderich (2009) ''Das historische Pommern. Personen, Orte, Ereignisse'' (Böhlau Verlag)

{{Viking

Jomsvikings
Viking Age populated places
History of Pomerania
Lost castles
Former castles in Poland