Haitsma Mulier, E.O.G. “W. De Groot, The Seventh Window. The king’s Window Donated by Philip II and Mary Tudor to Sint Janskerk in Gouda (1557)”. BMGN - Low Countries Historical Review 121, no. 2 (January 1, 2006): 328–329. Accessed April 23, 2024. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-107358.