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Birth:          ABT 1160 
Death:          13 Apr 1213 Chemille, Maine, France

Notes
https://en.wikipedia.org/wiki/Alix,_Duchess_of_Brittany
https://en.wikipedia.org/wiki/Guy_of_Thouars
Guy of Thouars (died 13 April 1213) was the third husband of Constance, Duchess of 
Brittany, whom he married in 1199 in Angers, County of Anjou between August and 
October 1199[a][1] after her son Arthur of Brittany entered Angers to be recognized as 
count of the three countships of Anjou, Maine and Touraine. He was an Occitan 
noble, a member of the House of Thouars.

Between 1196 and the time of her death delivering twin daughters, Constance ruled 
Brittany with her young son Arthur I, Duke of Brittany as co-ruler. When Duke Arthur I 
died in 1203, he was succeeded by his infant maternal sister, Alix of Thouars. Guy 
served as Regent of Brittany for his infant daughter Alix, Duchess of Brittany from 
1203 to 1206.

In 1204, Guy de Thouars as regent of Duchess Alix, vassal of the Philip II, King of 
France, undertook the siege of the Normans island fortress of Mont Saint-Michel. 
Because the abbey would not surrender, he set fire to the village and massacred the 
population. He was obliged to beat a retreat under the powerful walls of the abbey. 
The fire which he himself lit extended to the buildings, and the roofs fell prey to the 
flames. Philip II paid Abbot Jordan for the reconstruction cost.

In 1206 Philip II took the regency of Brittany himself, much to the consternation of the 
Breton nobles. [b]

Guy of Thouars died in 1213 in Chemillé in the county of Maine, and was buried with 
Constance at Villeneuve Abbey, or the Abbaye de Villeneuve in Les Sorinières outside 
of Nantes. 'Situated at Nantes south gate, Abbey de Villeneuve' was 'founded in 1201 
by Constance de Panthièvre, the Duchess of Brittany ...'[2]
Issue[edit]

Guy married Constance of Brittany in 1199.[3] They had two daughters:
Alix of Thouars (1200 - 1221), who succeeded her maternal brother in 1203 as suo 
jure Duchess of Brittany and Countess of Richmond;
Catherine of Thouars (1201 - c. 1240), Dame of Aubigné; she married Andrew III, 
Baron of Vitré,[4] in 1212;

Several sources indicate that Constance and Guy might have had a third daughter:[5]
Margaret of Thouars,[c][6][7][8][d][9][10][11][12]

In 1203, Guy married as his second wife Eustachie of Chemillé. They had a son:
Peter, Lord of Chemillé (1204-1254/55), who married Eleanor of Porhoët.
Thomas of Chémillé (d. after January 1246).

Parents
DE THOUARS Geoffrey ()
DE LUSIGNAN Aenor ()

Siblings
DE THOUARS Guy (ABT 1160 - 13 Apr 1213)

Marriage To OF BRITTANY Constance (1161 - ABT 5 Sep 1201)
    m. 1199 

Notes

Parents
____ Conan IV (1138 - 20 Feb 1171)
OF HUNTINGDON Margaret (1145 - 1201)

Children by OF BRITTANY Constance 1161 - ABT 5 Sep 1201
____ Alix (1200 - 21 Oct 1221)

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