Coombs Genealogies


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First Name Last Name
Guido, Warden of Breton March

Guido, Warden of Breton March

Male Abt 760 - Bef 819  (< 58 years)


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  • Name Guido  
    Suffix Warden of Breton March 
    Birth Abt 760  Hornbach, Bergstrasse, Hessen, Germany Find all individuals with events at this location 
    Gender Male 
    Death Bef 819 
    Person ID I26353  Coombs
    Last Modified 13 Dec 2014 

    Father Lambert, Count of Hornbach,   b. Abt 730, Hornbach, Bergstrasse, Hessen, Germany Find all individuals with events at this locationd. Abt 783 (Age 53 years) 
    Family ID F9189  Group Sheet  |  Family Chart

    Family   
    Children 
     1. Lambert I, Count of Nantes, Prefect of the Breton March, Duke of Spoleto,   b. Abt 785, Nantes, Brittany, France Find all individuals with events at this locationd. 1 Sep 836 (Age 51 years)
    Family ID F9188  Group Sheet  |  Family Chart
    Last Modified 2 Feb 2026 

  • Notes 
    • Guy or Guido (died before 819) was appointed to replace the late Roland as Warden of the Breton March after his death at the Battle of Roncesvalles in 778. Guy no more effectively exercised control over Brittany than his predecessor, but was the chief contact by which the Bretons knew French policy. His actual territory of control was the County of Nantes. Carolingian infighting distracted Guy and prevented him from exhibiting any real authority. It was to be Norman pressure on the Bretons which would open a portal to a French dynasty in Brittany under Berengar of Rennes.
      Guy was the son of Lambert and Teutberga of the Austrasian family of the Guideschi. Guy received his charge in Neustria and Nantes about 799, at the same time that his brother Frodoald received thecounty of Vannes. Royal annals note in the year 799 that "Guy, prefect of the marches of Brittany, who in the same year traversed the whole province with the counts his colleagues, came to present [toCharlemagne] at Aachen, the arms of the Breton chiefs who had been rendered to him, and on each trophy was inscribed the name of the chief to whom the weapon belonged." It was specified at the same time that "Brittany appeared then to be entirely subject."
      Guy's name subsequently appears, notably in 814, in the many acts recorded in the cartulary of the abbey of Saint-Sauveur de Redon, where it is found beside that of Jarnhitin (or Iarnhitin), machtiern (ormactiern) or princeps plebis (prince of the people, meaning chief). The cartulary says "Jarnhitin rules, Guy is count."
      Guy died before 819, leaving his son Lambert as count of Nantes and prefect of the march.