Aznar (or Asnar) Sánchez (Basque: Aznar Antso, French: Aznard Sanche, Gascon: Aznar Sans) (died 836) was the Duke of Gascony from 820. He was the supposed son of Sancho I of Gascony, though he has been identified with Aznar Galíndez I, Count of Aragon.
In 820, Lupo III Centule rose in rebellion against Carolingian authority and Berengar of Toulouse and Guerin of Provence marched against him, defeated him, and installed Aznar, a count of local provenance, in his place. However, both Aragon and Navarre remained outside Carolingian control and western Gascony continued in revolt.
In 824, according to the Vita Hludowici, the counts Aznar and Aeblus (Eblus atque Asenarius committees) led an army against rebellious Pamplona. According to the Annales regni Francorum of Einhard, they (Aeblus et Asinarius comites) brought a great deal of wealth with them. They were defeated in a "second Roncesvalles" and Pamplona gained its independence while the two counts were captured. Aznar, however, being a relative (consanguineus) of his captors, according to Astronomus, was released.
Aznar fell out with Berengar's successor in the March of Gothia, Bernard of Septimania. In 828, Gascony revolted again. In 836, Aznar was killed (a horrible death) putting down a revolt in Gascony, which had been in tumult since his absence of 824, and was replaced by his brother Sancho, despite the objections of King Pepin.
| Duke of Gascony
The County of Bigorre was a small feudatory of the Duchy of Gascony in the ninth through 15th centuries. Its capital was Tarbes.
The county was constituted out of the dowry of Faquilène, an Aquitainian princess, for her husband Donatus Lupus I, the son of Lupus III of Gascony. The original Bigorre was considerable in size, but successive generations, following on Gascon traditions, gave out portions as appanages to younger sons. The county lost Lavedan, Aster, Aure, and Montaner in the first two generations.
The original Gascon dynasty, probably descended from Lupus II of Gascony, died out in Bigorre in the 11th century, the county passing to the House of Foix and then that of Béarn. In the 12th century, it went to the house of Marsan and then of Comminges and in the thirteenth to that of Montfort. It was briefly in the hands of the Armagnacs and passed between English and French suzerainty during the Hundred Years' War before finally being recovered by the French. In the 15th century, it fell to the House of Foix again and thence to the crown in an exchange of properties.