Guerrero, Francisco  ( born Oct. 4?,  May1528 , 1527 Sevilla, Seville, Spain—died Nov. 8, 1599 , Seville  Sevilla )  one of the leading Spanish composers of the 16th century.

Guerrero was a choirboy in Sevilla (Seville) and at the age of 18 became chapelmaster at Jaén Cathedral in Andalusia, Spain. In 1548 1546 he was appointed cantor at Seville Sevilla Cathedral, assuming effective musical directorship in 1551 and becoming chapelmaster in 1574. Except for a trip to Rome and one to Jerusalem, he spent most of his working life in SevilleSevilla. Guerrero’s music is considered eminently vocal, strongly Spanish in character, and evocative of a vivid and serene spirituality. His compositions include 18 instrumental music for vihuela, 19 masses, two 2 requiems, settings of the Passions of St. Matthew and St. John, Latin motets, and sacred songs in Spanish.