gil sánchez muñoz y carbón, was one of the antipopes of the avignon papacy, reigning from 10 june 1423 to 26 july 1429 as "clement viii". he was born in teruel between 1369–1370 and a member of the avignon curia. when alfonso v of aragon reached an agreement with pope martin v, sanchez muñoz abdicated, made his submission and was appointed bishop of mallorca. he died on 28 december 1446.