LOQUILL0, or LUQUILL0 (lo-keel'-yo), West Indian cacique, born about 1478; died about 1525. He took a principal part in the first insurrection of the natives against the Spanish conquerors of Porto Rico as one of Agueinaba's lieutenants, and, after this chief was routed and killed in 1511, withdrew with some followers to the wildest, part of the country, whence he constantly harassed his foes. In 1515 he planned with the caciques Humacao and Daguao another general rebellion, which soon met with disaster. Humacao and Daguao submitted to the conqueror, but their companion refused to do so, and retired with the natives that followed him to the highest mountain of the island, which still bears his name. There he established his stronghold, and frequently fell upon the Spaniards, killing them, burning their farms, and taking their cattle. He died a free man, while most of his countrymen were either dead or slaves.