Zerega's Spanish Troubadours were a mandolin and guitar ensemble active at the end of the 19th century in England. They were directed by Eduardo Zerega, known in the mandolin world for a single work, Souvenir de Bovio. Less well known is the untimely death of his wife in 1896 in New York, that was described in the newspapers of the day, as the "Zerega Mystery". Zerega was the stage name of and his wife . While the Zerega's promoted themselves as from Madrid, Spain, the Hills were born in Indiana, but moved to London shortly after they were married.