In 1260, he married Mathe de Béarn (1250 † ap.1317), daughter of
Gaston VII, Viscount of Béarn and
Martha, Viscountess of Marsan They had six children: •
Bernard VI (v.1270 † 1319), Count of Armagnac and Fezensac • Gaston d'Armagnac (v.1275 † 1320), stem from the branch of the Viscounts of Fezensaguet • Roger d'Armagnac († 1339), Archbishop of Auch, Bishop of Laon and Lavaur • Mascarós Armagnac (v.1285 †), wife of William Arnaud Fumel (v.1280 †), Vicomte de Labarthe and Aure • Alarcon Armagnac (v.1285 † 1313), married
Bernard VIII (v.1285 † 1336), Count of Comminges • Mathe d'Armagnac (v.1285 † 1313), married Bernard Trenqueléon Lomagne (v.1280 † 1337), Lord of Fimarcon. ==Notes==