Tracy, James D. “Liesbeth Geevers, Gevallen Vazallen. De Integratie Van Oranje, Egmont En Horn in De Spaans-Habsburgse Monarchie (1559-1567)”. BMGN - Low Countries Historical Review 125, no. 4 (January 1, 2010): 133–134. Accessed June 28, 2022. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-108197.