Juan Valencia

(male) (Spanish) form of John, now also used as a given name in English-speaking countries, in spite of the unfavourable associations with Don Juan, the heartless seducer of Mozart's opera Don Giovanni (1788) and libertine hero of Byron's satirical epic (1819–24).

Catalan (València) and Spanish: habitational name from any of various places called València or Valencia, principally the major city in eastern Spain, which was formerly the capital of an independent Moorish kingdom of the same name, until it was reconquered in 1239 by James I, king of the Catalan dynasty, and became part of the Crown of Aragon together with the Principality of Catalonia and the Kingdom of Aragon. The city was apparently named from an honorary title derived from Latin valens ‘brave’.