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Laurum (Woerden)


Detail of map of Germania Inferior. Design Jona Lendering.
The location of Laurium (number 9)
Laurium or Laurum (modern Woerden): small Roman fort along the Lower Rhine. 

This webpage is part of a series of short descriptions of villages in Germania inferior. An overview can be found here.

Archaeologists and historians have long suspected that there was a Roman fort somewhere in the center of modern Woerden. A castellum named Laurium or Laurum is shown on the Peutinger map and this (very low) hill, dominated by a church that dates back to the Carolingian age, is one of the few possible locations. Here, the Romans guarded several small rivers flowing south from the peat country on the north bank of the Rhine.

Ancient-Warfare.com, the online home of Ancient Warfare magazine
Map of Laurium (Woerden).
Modern Woerden with the ancient course of the Rhine, fort (red), quay (green), and the seven ships.

The river port of this fort and a ship were discovered in the 1980's. Another ship, discovered in 1978, carried a load of grain and palaeobotanists were able to identify the weeds. More precisely, they were able to establish that these weeds (and therefore the cereals) came from the fertile loess of the valley of the Meuse, probably from Tongeren.

Parts of a galley and a complete, 30 meter long freighter were found in 2003. The last-mentioned ship was made from wood that was cut in 162 or 163 somewhere in the Netherlands, and had -remarkably- been caulked with reed mace instead of moss. It is the twin of a barge found at Zwammerdam, 15 kilometers downstream. A report from the sixteenth century may refer to a Roman barge as well; together with two canoes, we reach the grand total of no less than seven Roman ships at Woerden.
 
4
1576 Holle Bolwerk Freighter?
1
1978 Groenendaal Library Freighter
2/6
1988 Gas plant Oranjestraat  Freighter
3
1988 Gas plant Oranjestraat  Canoe
5
1998 Gas plant Oranjestraat  Canoe
7
2003 Nieuwe Markt Freighter
8
2003 Nieuwe Markt Galley

The Woerden-7. Photo Hazenberg Archeologie.
The "Woerden-7" (Hazenberg Archeologie; ©*)

T
he exact site of the fort was identified in 1999-2000 when the traces of ditches that once surrounded the southeastern and southwestern side of the fort were finally found. The inside of the old castle has not yet been investigated (except for one very small excavation). The most recent investigations focus on the area between the fort and the ancient course of the river Rhine.

At the moment, there is evidence for four successive building phases; coins prove a fifth phase. Numismatic evidence suggests that the first Roman settlement at Woerden dates back to the reign of the emperor Caligula, who visited the area in 40 and whose building activities are also known from Vechten and Valkenburg. In this building phase, fort Woerden had a north-south orientation that was not repeated when the settlement was rebuilt in c.47, when the Roman general Gnaeus Domitius Corbulo reorganized the Rhine frontier. (A slightly earlier date can not be excluded.) This second fort, from the reign of Claudius, faced the southwest and southeast. It was destroyed by the Cananefates or Batavians, who revolted against the Romans in the summer of 69 and destroyed two legions.

The ditch of Woerden III. Photo ADC.
The ditch of Woerden III (ADC; ©*)

After 70, during the reign of Vespasian, the third fort was built. One very small excavation has taken place inside its walls; the remains of a house have been found, but they can not be identified with any certainty (barracks or officer's mansion?). It is often said that the unit that occupied Woerden in the second century was the Cohors XV Voluntarium, the fifteenth regiment of volunteers. One remarkable aspect of this fort is the heavy wooden sheet piling of the ditch. This building technique is without parallel in the ancient world.
Minerva on a gem, found in Woerden. Photo Hazenberg Archeologie.
Minerva on a gem, found in Woerden. (Hazenberg Archeologie; ©*)

All these forts were made of wood. In the fourth building phase, the castle was rebuilt from natural stone and brick - at least, that is what is usually assumed, because this is the end of the development of all comparable forts (e.g., nearby Utrecht). Direct evidence, however, is absent and we can not reconstruct the map of Woerden IV. On the other hand, the presence of large amounts of tuff and other natural stone suggests that after the mid-second century, Woerden was reconstructed from stone too. Roof tiles with the stamps of the Thirtieth legion Ulpia Victrix, which was stationed at Xanten, suggest the same, because they were produced between 140 and 180 only.

Like all forts along the Lower Rhine, Woerden must have been evacuated in c.274, when the emperor Aurelian reintegrated the independent Gallic Empire in the Roman empire. Many troops were killed in battle or transferred to Italy, and the Rhine frontier collapsed.

After a quarter of a century, the Romans returned to the Lower Rhine. For Woerden, this is proved by coins from the reigns of the emperors Constantine I the Great (307-337), Constantinus II (337-340), Constans (337-350), Valentinian I (364-375), and Theodosius I (378-395). Direct archaeological evidence is absent.

Woerden's Elagabal inscription. Stadsmuseum Woerden (Netherlands). Photo Jona Lendering.
The Elagabal inscription (Stadsmuseum Woerden)

Another interesting discovery is an altar to the Syrian sun-god Elagabal from the mid-second century (more...). The scarce remains of a monumental building in the village near the fort -a frescoed piece brick- were discovered in May 2003. The identification of this construction with a bathhouse is uncertain, but is additional evidence of the fifth, stone building phase of the fort. Another recent find that is worth noting is an asparagus knife.

Literature

  • E. Blom, T. Hazenberg, W. Vos, "Het geroeide Nederlandse vrachtschip de ‘Woerden 7’. Onderzoeksresultaten van de opgraving van een Romeinse platbodem aan de Nieuwe Markt in Woerden (Hoochwoert)", Westerheem 55 (2006) 141-154.
  • Wouter Vos et al., "De Romeinse limes tijdens Caligula: gedachten over de aanvang van het castellum Laurium en onderzoeksresultaten van de opgravingen uit 2002 aan het Kerkplein in Woerden" in Westerheem 52 (2003) 50-62.
  • Woerden 7 Website
Wouter Vos kindly corrected this article.
Online 2002/2003
Latest revision: 26 April 2007
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