Painter, S. (2019). William Marshal: Knight-Errant, Baron, and Regent of England. Johns Hopkins University Press.

Painter, Sidney. William Marshal: Knight-Errant, Baron, and Regent of England. Baltimore, Md.: Johns Hopkins University Press, 2019.

Painter, Sidney. William Marshal: Knight-Errant, Baron, and Regent of England. Johns Hopkins University Press, 2019.