Frijhoff, W.Th.M. “E. Jacques, Philippe Cospeau. Un Ami-Ennemi De Richelieu 1571-1646”. BMGN - Low Countries Historical Review 106, no. 2 (January 1, 1991): 270–271. Accessed November 21, 2024. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-103855.