Fundstellen überprüft. I, 9, S. 368 bezieht sich vielmehr auf die Otia Imperialia.

Gervase of Tilbury: Otia Imperialia. Recreation for an Emperor. Edited and translated by S. E. Banks and J. W. Binns. Oxford: Clarendon Press, 2002, S. XXV-XXXVIII.

Oxford Dictionary of National Biography [ODNB]. From the earliest times to the year 2000. Vol. 1-60. Supplement 1 f. Matthew, Henry C. G. (ed.); Harrison, Brian. Oxford [u.a.] : Oxford University Press, 2004 ff.

Vol. 54, S. 774 f.