Question: Who is the paternal grandmother of Gaston Iv, Count Of Foix?
Sentence (from "Gaston II, Count of Foix"): In 1315, after the death of his father Gaston I, he became Count of Foix, and Viscount of Béarn, Marsan, Gabardan, Nébouzan and Lautrec under the regency of his mother, Jeanne of Artois.
Relevant evidence: No