"Discover print artist, painter, draftsman Karel du Jardin". RKD Netherlands Institute for Art History. Retrieved 7 November 2020. "1626-09/1626-09-27 [B]aptized on 27 September 1626 in the Lutheran Church in Amsterdam. In a document dated 16 May 1672, published by Bredius, Du Jardin is mentioned as about 50 years. As a consequence, his birth was previously estimated as c. 1622 (Kilian 2005, p. 11)."
