The Rijksmuseum | Documentation “The Rembrandt Database, Object information, Rembrandt, orofRembrandt, and studio ofen atelier vanRembrandt, Portrait of Johannes Wttenbogaert, dated 1633, Rijksmuseum, Amsterdam, inv. no. SK-A-4885, http://www.rembrandtdatabase.org/Rembrandt/painting/3044/portrait-of-johannes-wttenbogaert, accessed 2016 February 01”