Claim: Queilén is a land thought to cover a portion of the southeast of the Greater Island of Chiloé  in Chile and was founded in 1778 and it is a Municipality.
Evidence: It covers a portion of the southeast of the Greater Island of Chiloé, between the communes of Chonchi, Quellón, Tranqui Island and Acuy Island. Queilén is a town and commune in the Archipelago of Chiloé in southern Chile. 1778 Municipality