Complex sentence: Strong, 1983a, p.34 Horenbout later taught the art of illumination to Hans Holbein the Younger, also a court artist of Henry, at least according to Karel van Mander who refers to a "Lucas", assumed to be Horenbout.
Split into simpler sentences: Strong, 1983a, p.34 Horenbout later taught the art of illumination to Hans Holbein the Younger, also a court artist of Henry. According to Karel van Mander who refers to a "Lucas", assumed to be Horenbout.