Guy de Thouars, Count of Brittany, Earl of Richmond

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Guy de Thouars, Count of Brittany, Earl of Richmond, son of Geoffroi V, Vicomte of Thouars and Aumur (---), was born about 1155.1 He died at Chemillé, France, 13 April 1213,1 and was buried at Villeneuve, France.1

Guy married (1), as her 3rd husband, Constance of Brittany, Duchess of Brittany, daughter of Conan IV, Duke of Brittany and Margaret de Huntingdon;1 he married (2) Eustache de Mauléon, whose ancestry is unknown (or not traced here).1

Family 1

Constance of Brittany, Duchess of Brittany d. 4 Sep 1201

Family 2

Eustache de Mauléon d. aft. 1244


  1. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families, Five vols. (Salt Lake City, Utah: s.p., 2013), 1:543 (Brittany 6), further cited as Richardson, Royal Ancestry.