The song's lyrics were written by
Keith Reid, and its music was composed by
Gary Brooker, who also sang. It was featured on the band's 1967 album,
Procol Harum. The song is unusual in that the music was written before the lyrics; according to Reid, "99 out of 100 of those Procol Harum songs were written the words first, and then were set to music." He explained that Brooker had written a piece of Spanish-flavored music before the band had officially formed, and Reid decided to write lyrics about a
conquistador. In August 1971, Procol Harum was invited to perform with the
Edmonton Symphony Orchestra in
Edmonton,
Alberta. Procol Harum's equipment was hung up at the border; as a result the band and the orchestra only rehearsed "Conquistador" once ("All songs now played at least once.") before the show. Nonetheless, they began the concert with the song, and the concert was captured on the album
Procol Harum Live: In Concert with the Edmonton Symphony Orchestra, of which "Conquistador" was the lead single. ==Lyrics==