Richard Maidstone (?), Chaucer — c. 1400; English

Tractatus ad faciendum astrolabium — c. 1400; English

Treatise on making an astronomical instrument 'Navicula de venetiis' — c. 1400; English

John of Bury — 15th century, third quarter (after 1457); English

Collections of Thomas Urmston, chaplain of Lymm, Cheshire; English, c. 1478 × 1489

Johannes Viennensis, Johannes de Sacro Bosco, etc. — Multiple dates

John Gower — 15th century, beginning; English, London (?)

Medical treatises; England (Salisbury), 1453-1459

Sermons, Theological notes and extracts — 12th century, end; English

Ailred of Rievaulx, etc. — c. 1430-1440; English

The Craft of Dying — 15th century, middle; English

The Prick of Conscience — 15th century, first half; English

John Capgrave — 15th century, middle; English

Life of Adam, Religious texts, etc. — 15th century, beginning (after 1415); English

John Lydgate — 15th century, third quarter; English

Bede, Lethaldus Miciacensis, etc. — 11th century, end - 12th century, beginning; Multiple places of origin

John Gower — 15th century, beginning; English

Book of Hours, Use of Sarum — 15th century, third quarter; English

Walter Map, Nigel Witeker, etc. — 14th century, third quarter; English

William Langland — 15th century; English

Alain Chartier — 15th century

Peter the Chanter — 13th century

Robert of Bridlington — 15th century; English

Acts, Catholic Epistles and Apocalypse with gloss — 13th century, end; English

John Gower — 15th century, beginning; English, London (?)

Prayers, offices, etc. for private use, Calendar, etc. — 15th century and 15th century, end; English and Flemish (?)

Mirouer historiale abregé de France — c. 1451-1473; French, Angers