Giuseppe Domenico Scarlatti was an Italian composer who spent much of his life in the service of the Portuguese and Spanish royal families. He is classified primarily as a Baroque composer chronologically, although his music was influential in the development of the Classical style and he was one of the few Baroque composers to transition into the Classical period. Like his renowned father Alessandro Scarlatti, he composed in a variety of musical forms, although today he is known mainly for his 555 keyboard sonatas.