Elisabeth of Courtenay

Elisabeth of Courtenay was an Empress consort of Bulgaria, the daughter of Peter II of Courtenay and Yolanda of Flanders.
Elisabeth married tsar Boril of Bulgaria, Walter of Bar-sur-Seine and then Eudes I Lord of Montaigu.
Elisabeth and Eudes had:

Alexandre of Montagu,
Guillaume I, Lord of Montaigu,
Phillipe of Montagu, Lord of Chagny married Flore d'Antigny. Had a daughter Jeanne of Montagu.
Gaucher of Montagu, Lord of Jambles,
Eudes of Montagu,
Unnamed daughter,
Unnamed daughter,
Marguerite, Lady of Villeneuve,