References:

1   Rubens: his life, his work, and his time, Volume 2 By Emile Michel. p. 98
2   http://en.wikipedia.org/wiki/Florin_(Italian_coin)
3   http://nl.wikipedia.org/wiki/Nederlandse_gulden
4   http://ringlingdocents.org/amsterdam.htm
5   Ons Voorgeslacht. W.J. Hofdijk. Zesde Deel. A.C. Kruseman Haarlem. pp 59-63
6   Art in History, History in Art. Studies in seventeenth-century Dutch culture. Edited by David Freedberg and Jan de Vries
7   http://www.amsterdamoudestad.nl/bezienswaardigheden/rembrandthuis
8   Master of Shadows: The Secret Diplomatic Career of the Painter Peter Paul Rubens. By Mark Lamster. p91
9   Art market and connoisseurship: a closer look at paintings by Rembrandt. By Anna Tummers, Koenraad Jonckheere. pp 110-118
10   Rubens: a genius at work. By Joost vander Auwera, Musées royaux des beaux-arts de Belgique p.215
11   The Birth of Plenty. How the Prosperity of the Modern World was Created. William J. Bernstein. McGraw-Hill.pp231-235
12   Global Investing. Roger G. Ibbotson and Gary P. Brinson. McGraw-Hill. pp251-252
13   http://www.numbeo.com/cost-of-living/compare_countries_result.jsp?country1=Netherlands&country2=United+States
14   Rubens, The Artist. A Detailed Study of His Life and Works. By H. Knackfuss. Forgotten Books p. 38, 108
15   P. P. Rubens: Aanteekeningen over den grooten meester en zijne bloedverwanten. By Pierre Génard. p.73
16   http://www.rubenshuis.be
17   http://www.britannica.com/shakespeare/article-6287
18   http://rheumatology.oxfordjournals.org/content/44/5/681.full