Ferdinand von Biedenfeld, Geschichte und Verfassung aller geistlichen und weltlichen, erloschenen und blühenden Ritterorden..., Band 1, Verlag Bernhard Friedrich Voigt, Weimar 1841, p. 100 (《兔子骑士》在Google Books的內容。)(德语)
George Payne Rainsford James: A history of the life of Edward the Black Prince, and of various events connected therewith which occured during the reign of Edward III, King of England. Green & Longman 1836, p. 168 (《兔子骑士》在Google Books的內容。)