 Chanka Andahuaylas were close relatives of the other tribes that inhabited the province of Ayacucho, and as a nation were strengthened after the decline of the Wari expansion.According to Sarmiento de Gamboa, the Chanca territory was divided into three groups, known as Hanan Chanca (Parkos, Ayllus del Ancoyaco), Urin Chanka (Uranmarca, Andahuaylas) and villca or Rukanas (Vilcas).The Chanka nation was composed of the Ancoyaco, Andahuayla, Rucana and Sora tribes.