Louis Halphen, 1911 Encyclopædia Britannica, Volume 11… (1911)
“ Elizabeth having died in 1000, Fulk married Hildegarde of Lorraine, by whom he had a son, Geoffrey Martel (q.v.) , and a daughter Ermengarde, who married Geoffrey, count of Gâtinais, and was the mother of Geoffrey “le Barbu” (the Bearded) and of Fulk “le Réchin” (see Anjou) . See Louis Halphen, Le Comté d’Anjou au XI e siècle (Paris, 1906) . The biography of Fulk Nerra by Alexandre de Salies, Histoire de Foulques Nerra (Angers, 1874) is confused and uncritical. ”
