Text MS and Item no. IMEP volume
Ordinances of War (1385) CUL Mm.3.29 [5] 19
Ordo ad faciendum Sponsalia Laud 267 [A 21] 16
Ordo ad faciendum Sponsalia Laud 302 [A 25] 16
Ordo ad faciendum Sponsalia Laud 253 [A 19] 16
Ordynwayny, Griffithe, scribe Trinity O.2.9 11
Oresme, Nicholas (Nicole) Trinity O.3.11 [6] 11
Oresme, Nicholas (Nicole) Trinity O.3.11 [3] 11
Oribasius Caius 451/392 [5] 17
Oriel College, Oxford Trinity O.10.21 11
Orient HM 114 [1] 1
Orléans Caius 457/395 [20] 17
Orton Bridge, Warks. CCCC 210 [15] 20
Osbern de Westminster Trinity R.14.44 [15] 11
Osberne, John, recipe author, ca. 1514 Trinity O.8.36 [A 66] 11
Oseney, abbot of CUL Dd.14.2 [1] 19
Oswald the Bishop, St, life of Lambeth 72 [83] 13
Oswestry, Shropshire Peniarth 26 14
Oswin Pem 82 [1] 18
Oswin, St Pem 82 [1] 18
Otto I, Holy Roman Emperor Digby 205 [1] 3
Owen, Gutun NLW 3026 14
'Owl illuminator' CCCC 142 20
Oxenden, John Ashmole 858 [2] 9
Oxford BodL L 37 [8] 12
Oxford Caius 457/395 [20] 17