Geoffrey Chaucer — 1441; England. As Henry VI became king on 1 September 1422, the Explicit (see above) fixes the date that the manuscript was written to the first eight months of 1441. Language of NE Lincolnshire, mixed with a Leicestershire component (A Linguistic Atlas of Late Mediaeval English [Aberdeen, 1986], vol. 1. 152)
Historia de illo celebri in Vienna conuentu trium regum Sigismundi Polonie, Wladislai Hungarie et Bohemie, [et] Ludouici filij eius cum Maximiliano Cæsare, qui fuit anno 1515 — 16th century
Calendar, Use of Sarum (London) — after c. 1444; English, London