Question: Who is Jeanne De Fougères, Countess Of La Marche And Of Angoulême's mother-in-law?
Sentence (from "Jeanne de Fougères, Countess of La Marche and of Angoulême"): Jeanne de Fougères (died after 1273), was ruling suo jure Lady of Fougères from 1256.
Relevant evidence: No