Rashdall, Hastings. Universities of Europe in the Middle Ages. Editors Powicke, Sir Frederick Maurice and Alfred Brotherston Emden, Clarendon, 1987, 3 vols.
II: 318-9
Haydn, Joseph. Haydn’s Dictionary of Dates and Universal Information. Editor Vincent, Benjamin, 23rd ed., Ward, Lock, 1904.
1335
Matthew, Henry Colin Gray et al., editors. Oxford Dictionary of National Biography. http://www.oxforddnb.com/.