Geoffrey of Monmouth — 1400s × 1440s; England

Prose Brut — 15th century

Jacobus de Cessolis, Giles of Rome — 15th century (1415 and 1416)

Grammar — 15th century

Welsh-English grammar of Dafydd Ddu — 15th century

Welsh-English-Latin dictionary — 15th century

Canon law — 15th century

Book of Llewelyn — 15th century

Medical texts — 15th century

Philosophical texts — 14th century – 15th century

William of Pagula — 15th century

Theological texts — 15th century

Disce Mori — 15th century

Dares Phrygius, etc. — 15th century

Veritatis theologiae — 15th century

Tacitus — 15th century

Red Book of Hergest — 15th century

Ambrose — 15th century

Pedigree of John Poulet — 15th century, early