Expositio libri Physicorum Aristotelis; and Comment. in libros 1, 2, et 3, Sententiarum[1395].
MSS. Sta. Croce, Florence 380, 381, 382, 383; mentioned in Wadding, Sup. ad Script. These MSS. are now in the Laurentiana, ex Bibl. S. Crucis, Plut. xxxiv. Sin. Codd. iv, v, vi, vii, but they do not seem to contain the Physics.
Quaestiones tres philosophicae per Gulielmum (de Mara?) de Anglia, fratrem ordinis Minorum. Inc. ‘Est dubitacio utrum lineam componam ex punctis.’
MS. Bodl. Canon. Misc. 226, f. 76 (sec. xv). There seems no reason for attributing these to W. de Mara rather than to William of Ockham, or any English Minorite named William[1396].
John of Oxford, Friar Minor, was ordained priest by Peckham in 1284[1397].
Richard de Slekeburne (co. Durham), confessor of Devorguila, played an important part in the foundation of Balliol College: this has already been referred to[1398]. There is no direct proof that Friar Richard was himself at Oxford. Several documents relating to him are preserved in the Balliol College Archives, and described in the Reports of the Hist. MSS. Commission[1399].
(1) A letter of Devorguila to him, in which she speaks of
‘the alms of the poor scholars of our House of Balliol now studying at Oxford,’
and urges Friar Richard by all means in his power to promote the perpetuation of the said house, A. D. 1284.
(2) A grant by the executors of Sir John Balliol of sums to the scholars, with the consent of Devorguila and at the advice of Friar R. de Slekeburne (three deeds, 1285-1286).