Complex sentence: Robert Charles Guccione, Jr. (born 1956)-the eldest son of Bob Guccione (founder of "Penthouse" magazine)-is best known for founding the music magazine "Spin".
Split into simpler sentences: Robert Charles Guccione, Jr. (born 1956) is the eldest son of "Penthouse" founder Bob Guccione. He is best known for founding music magazine "Spin".