A pre-Inca Andean kingdom of the upper Marañón basin (modern Huánuco department, Peru), remembered by the colonial chronicler Guaman Poma de Ayala — himself descended from its rulers — as ruled by more than thirty monarchs under the hereditary title 'Yarowilca'.
Absorbed by the expanding Inca Empire in the mid-15th century (conquest era, c. 1450s per secondary sources); the Yaro/Huánuco identity survived into the colonial period, notably through the lineage of Felipe Guaman Poma de Ayala, who identified as 'Yarovilca-Huánuco'.
Standard English-language survey of Late Intermediate Period Andean polities predating Inca conquest, covering the regional kingdoms (incl. the central-highland Huánuco/Yaro sphere) that the Inca absorbed in the 15th century. Used as fallback survey — no dedicated English-language monograph on the Yarowilca/Huánuco kingdom specifically was found on Open Library.