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Robert the Strong

Robert the Strong
Noble family Robertians
Father Robert III of Worms
Born 830
Died 866
Map of early Frankland, showing Austrasia, where Robert the Strong originated, and Neustria, between the Seine and Loire, where he held the most power.

Robert the Strong (c. 830-2 July 866), also known as Rutpert, also known as Robert IV of Worms, was Margrave in Neustria. His family is named after him and called the Robertians. In 853 he was named missus dominicus by Charles the Bald, King of West Francia. He was the father of two kings of West Francia Odo (or Eudes) and Robert I of France. Robert the Strong was the great-grandfather of Hugh Capet and thus the ancestor of all the Capetians.


  • Origins and rise to power 1
  • Revolt 2
  • Death and legacy 3
  • Family 4
  • Notes 5
  • References 6
  • Additional References 7
  • External links 8

Origins and rise to power

Robert was a son of Robert III of Worms.[1] While very little is known about the beginnings of the Robertian family, historians have been able to adduce evidence that the family of nobles had its origins in Hesbaye (approximately present-day Belgium), or perhaps had descended from the family of Chrodegang of Metz—and that Robert was the son of Robert III of Worms.

During the reign of Louis the German in East Francia, the Robertian family emigrated from East Francia to West Francia. After their arrival in his realm Charles the Bald rewarded the family defecting from his enemy by assigning to Robert the lay abbacy of Marmoutier in 852. And in 853 he granted the position of missus dominicus in the provinces of Maine, Anjou, and Touraine to Robert, giving him de facto control of the ancient ducatus Cenomannicus, a large duchy centred on Le Mans and corresponding to the ancient realm of regnum Neustriae. Robert's rise came at the expense of the established family of the Rorigonids and was designed to curb their regional power and to defend Neustria from Viking and Breton raids.


In 858 Robert joined a rebellion against Charles the Bald. With the Bretons under Salomon he led the Frankish nobles of Neustria and invited Louis the German to invade West Francia and receive their homage. The revolt had been sparked by a marriage alliance between Charles and Erispoe, Duke of Brittany, and by the investment of Charles’ son, Louis the Stammerer, with the regnum Neustriae, all which significantly curtailed the powers of both Salomon and Robert. Charles had given Robert the counties of Autun and Nevers in Burgundy; and in 856 Robert had defended Autun from Louis the German. But following Erispoe's assassination in November 857, he and Salomon rebelled against Charles.

Robert’s Neustrians chased Louis the Stammerer from Le Mans in 858. Later that year, Louis the German reached Orléans and received delegations from the Breton and Neustrian leaders, as well as from Pepin II. In 861, Charles made peace with Robert and appointed him Count of Anjou. Thereafter Robert successfully defended the northern coast against a Viking invasion.

In 862 Charles granted Louis the Stammerer, his son, the lay abbacy of Saint Martin of Tours—a worthy benefice but small in comparison with the kingdom he had received in 856, and lost in 858. The young Louis rebelled and, befriended by Salomon who supplied him with troops, mounted war against Robert.

In 862 two Viking fleets converged on Brittany; one had recently been forced out of the Seine by Charles the Bald, the other was returning from a Mediterranean expedition. Salomon hired the Mediterranean fleet to ravage the Loire valley in Nuestria.[2] Robert captured twelve of their ships, killing all on board save a few who fled. He then hired the former Seine Vikings to attack Salomon’s realm for 6,000 pounds silver.

Robert’s apparent purpose was to prevent the Vikings from serving Salomon. [1] He presumably collected a large amount in taxes for a (non-tributary) Danegeld to pay for keeping the Vikings out of Neustria.[2] But peace between the Franks and the Vikings did not last long: in 863 Salomon made his peace, but the Vikings, now deprived of enemy lands to loot, proceeded to ravage Neustria. Charles now made Robert Lay abbot of the influential abbey St. Martin at Tours.[3]

Robert warred with Pepin II in his later years. In 863 he again defended Autun from Louis the German; he campaigned in Neustria in 865 and again in 866, shortly before his death, dealing with Bretons and Vikings ravaging the environs of Le Mans.

Death and legacy

On 2 July 866, Robert was killed at the Battle of Brissarthe while defending Francia against a joint Breton-Viking raiding party led by Salomon, King of Brittany and the Viking chieftain Hastein. During the battle the Viking commander was entrapped in a nearby church. Robert removed his armour to start to besiege the church; the Vikings then launched a surprise attack and Robert died in the subsequent melee. His heroic successes against the Vikings led to his characterization as "a second Maccabaeus" in the Annales Fuldenses.


While there are many conjectures regarding the wife of Robert, her identity and even her name cannot be definitively determined. Robert had two sons, in addition to several speculated daughters whose existence or identity as Robert's daughters cannot be definitively shown:[4]


  1. ^ Robert probably expected Salomon to hire them to replace the defeated Mediterranean Vikings, then to attack Neustria from two sides: with the Viking ships ascending the Loire and Breton troops invading by land.
  2. ^ In 860–1 Charles the Bald had collected a general tax to pay a Danegeld of 5,000 pounds. The king had probably authorised Robert's payment.


  1. ^ a b c Detlev Schwennicke, Europäische Stammtafeln: Stammtafeln zur Geschichte der Europäischen Staaten, Neue Folge, Band II (Marburg, Germany: J. A. Stargardt, 1984), Tafel 10
  2. ^ Einar Joranson (1923), The Danegeld in France (Rock Island: Augustana), 59–61.
  3. ^ Jim Bradbury, The Capetians, Kings of France 987-1328 (London: Hambledon Continuum, 2007), p. 24 ISBN 978-1-85285-528-4
  4. ^ The Henry ProjectStewart Baldwin, "Robert the Strong",

Additional References

  • Smith, Julia M. H. Province and Empire: Brittany and the Carolingians. Cambridge University Press: 1992. ISBN 0-521-38285-8
  • Hummer, Hans J. Politics and Power in Early Medieval Europe: Alsace and the Frankish Realm 600 – 1000. Cambridge University Press: 2005. ISBN 0-521-85441-5

External links

  • A comprehensive list of all the original sources for Robert the Strong, his possible ancestors and relatives, and theories about his ancestry by Stephen Baldwin on the Henry Project site
Preceded by
Charles II the Bald
Dukes of Maine
Succeeded by
Louis the Stammerer
Preceded by
Margrave of Neustria
Succeeded by
Robert I of France
Preceded by
Count of Anjou
Succeeded by
Odo of France
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