Astarac (French pronunciation:[astaʁak]) is a region in Gascony, a county in the Middle Ages. Astarac was formed as a county out of the partition of the Duchy of Gascony: following the death of García II Sánchez of Gascony, the duchy was partitioned between his sons, with Arnold I, the youngest son, receiving Astarac.
Dates should be approached with extreme caution. Usually the exact dates of accession and death are unknown and only floruit dates can be provided. Further, the sources do not always give the same dates.
Père Anselme; Déchaussé, Augustin; M. Du Fourny; Père Ange; Père Simplicien, eds. (1726). "Anciens Comtes d'Astarac". Histoire Généalogique Et Chronologique De La Maison Royale De France, Des Pairs, Grands Officiers de la Couronne & de la Maison du Roy: & des anciens Barons du Royaume (in French). Vol. 2 (3rd ed.). Paris: Compagnie des Libraires. pp. 615–620. Retrieved 23 September 2017.