The County of Aragon or County of Jaca was a small Frankish marcher county in the central Pyrenean valley of the Aragon river, comprising Ansó, Echo, and Canfranc and centered on the small town of Jaca (Iacca in Latin and Chaca in Aragonese), an area now part of Spain. It was created by the Carolingians late in the 8th or early in the 9th century, but soon fell into the orbit of the Kingdom of Navarre, into which it was absorbed in 922. It would later form the core of the 11th century Kingdom of Aragon.