[1] The parliament was summoned by the Royal Governor of Chile Ambrosio O'Higgins after the Spanish had suppressed an uprising by the Mapuche-Huilliches of Ranco and Río Bueno in 1792.
The indigenous signatories recognized the king of Spain as their sovereign but they kept considerable autonomy in the lands they did not cede.
The Mapuche-Huilliche leaders present in the parliament were Catrihuala, Iñil, Caniu, Calfuguir, Ancaguir, Colin, Naguinguir and Pichi Huaiquipan plus the messengers of the Cunco Paylapan.
After the Valdivian colonization had reached Bueno River Spanish authorities pushed for connecting the city of Valdivia with the settlements at Chacao Channel by a road.
This way the Spanish authorities hoped to make its possible for Valdivia and Chiloé to offer each other mutual aid in the case of an invasion by a European power.