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Francesco Pio di Savoia, later in Spain Francisco Pío de Saboya y Moura (1672–1723) was a Spanish nobleman of Italian birth who held numerous hereditary and awarded titles. From his father, in particular, he inherited the title of 3rd Prince of San Gregorio (with which he has remained mainly known, as Principe Pío), from his mother the title of 6th Marquis of Castelo Rodrigo and, only nominally, that of 4th Duke of Nocera, with which his younger brother Luigi was instead invested during the Austrian Habsburgh domination of the Kingdom of Naples.