These links were removed by DrKiernan: Coenraad van Beuningen, Nicolaes Witsen, Romeyn de Hooghe and Daniel Marot. The article is on De Hooghe is not very elaborate, but there is more to tell about him. Simon Schama published a lot of drawings by De Hooghe in his book The Emberrassment of Richness. Also the physician Govert Bidloo is not mentioned.