According to the Internet source given below, Hernando de Cabezón was a Spanish composer and organist, son of Antonio de Cabezón, chiefly remembered for publishing the bulk of his father's work.
He was born in Madrid and probably studied music with his father. His Obras de música para tecla, arpa y vihuela (Madrid, 1578) is probably his best known work.

Websites:
	Hernando de Cabezón	Biography by wikipedia.org.