フェルディナント・ボル
↑ Ferdinand Bol biography, Getty Museum
↑ Twenty years later visiting Ferdinand, Balthasar was painted by Rembrandt.
↑ Biography, Getty Museum
↑ Blankert, A. (1976) Ferdinand Bol.
↑ Crenshaw, P. (2006) Rembrandt's Bankruptcy. The artist, his patrons and the art market in seventeenth-century Netherlands, p. 40.