Carlos Fernández Shaw was a Spanish poet, playwright, and journalist. He wrote the texts for many zarzuelas, including La revoltosa, La chavala and Las bravías, all in collaboration with José López Si

Margarita la tornera is an opera in three acts composed by Ruperto Chapí to a libretto by Carlos Fernández Shaw, based on a dramatic poem by José Zorrilla. It premiered on 24 February 1909 at the Teat