Some of the most lavish 14th- and early 15th-century manuscripts are luxury copies commissioned by bibliophile magnates or royalty; John, Duke of Berry owned at least eight, with other notable patrons including Mahaut, Countess of Artois, Joan III, Countess of Burgundy, and several kings of France, including Charles V and John II, whose first copy was captured with him at the Battle of Poitiers.
Druon describes her as the poisoner of Louis X and his baby child, to be later poisoned the same way by her female slave, who originally helped with the King's poisoning.
Isidore contested the Mahaut constituency on the UWP ticket in the 2009 general election.
They had a son Robert, who was Constable of France, and two daughters, Jeanne de Fiennes who married Jean de Châtillon, Count of Saint-Pol, and Mahaut de Fiennes who married Jean de Bournonville.
The United Workers' Party made legal challenges to the results of five constituencies, Castle Bruce, Soufriere, Mahaut, St Joseph and Carib Territory alleging that there were problems with the counts and that the results were rigged by the government.