William De Thouars
Aenor De Lusignan
(1119-After 1157)
Guy De Thouars


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Constance De Bretagne

Guy De Thouars 37

  • Born: 1157, Thouars, Vienne, France 37
  • Marriage: Constance De Bretagne in 1199 in Angers, Anjou, France
  • Died: 13 Apr 1213, Villeneuve, Charente Martime, France aged 56 37

bullet  General Notes:

Guy of Thouars (died April 13, 1213) was Duke of Brittany between 1203 and 1206, succeeding his stepson Arthur I. He was the second husband of duchess Constance and styled himself Duke of Brittany and Count of Richmond in right of his wife.

However, Constance died in 1201, and since Guy's rule was based on thin criteria, King Philip II of France took control of the duchy soon afterwards. Guy served as regent from 1203 to 1213. Eventually he gave Brittany to his cousin Peter of Dreux, married to Alix of Thouars, Guy and Constance's daughter. He died in 1213 and was buried at Villeneuve Abbey Church.


Guy married Constance De Bretagne in 1199 in Angers, Anjou, France. (Constance De Bretagne was born on 12 Jun 1161 in Bretagne, France and died on 5 Sep 1201 in Nantes, Loire-Atlantique, France.)

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