The treatises in this manuscript were translated from Greek into Latin by Antonio Beccaria of Verona, who was secretary to Humfrey, Duke of Gloucester (1390-1447), from 1439. Humfrey was the younger brother of King Henry V, and regent of England after the latter's death in 1422, and this manuscript has his ownership inscriptions. Although the script is apparently by a scribe trained in Italy, it was probably written in England, and the decoration is a hybrid of English and Italian styles. By 1444 he had given it to Oxford University. This inscription is in Duke Humfrey's characteristic handwriting, and is worded similarly to ownership inscriptions in his other manuscripts: This manuscript is mine, Humfrey Duke of Gloucester, which I had translated from Greek into Latin by Antoyne Beccaria of Verona my servant ('Ceste livre est a moy Homfrey duc de Gloucestre le quel jay fait translater de grec en latyn . . .').