Complex sentence: Already elder in 1737, he relocated to Naples, where he was retained for some years as court painter for the young king Charles III of Spain, already duke of Parma and his wife Maria Amalia of Saxony.
Split into simpler sentences: Already elder in 1737, he affronted a long transfer to Naples, where he retained for some years at the court of the young king Charles III of Spain, already duke of Parma. Still a court painter, he was committed to portray King Charles and his wife Maria Amalia of Saxony.