|Centuries:||14th century – 15th century – 16th century|
|Decades:||1400s 1410s 1420s – 1430s – 1440s 1450s 1460s|
|Years:||1427 1428 1429 – 1430 – 1431 1432 1433|
- May 14 – First French attempts to relieve the Siege of Compiègne.
- May 23 – Joan of Arc is captured by the Burgundians while leading an army to relieve Compiègne.
- June 14 – William Waynflete becomes vicar of Skendleby, Lincolnshire.
- The Ottoman Empire captures Thessalonica from the Venetians.
- The Order of the Golden Fleece is founded by Philip III, Duke of Burgundy to celebrate his marriage.
- Bratislava Castle is converted to a fortress under Sigismund of Luxemburg.
- Švitrigaila succeeds his cousin as ruler of Lithuania.
- First use of optical methods in the creation of art.
- Janissaries are created.
|Ab urbe condita||2183|
|Balinese saka calendar||1351–1352|
|English Regnal year||8 Hen. 6 – 9 Hen. 6|
|Chinese calendar||己酉年 (Earth Rooster)|
4126 or 4066
— to —
庚戌年 (Metal Dog)
4127 or 4067
|- Vikram Samvat||1486–1487|
|- Shaka Samvat||1351–1352|
|- Kali Yuga||4530–4531|
|Japanese calendar||Eikyō 2|
|Minguo calendar||482 before ROC|
|Thai solar calendar||1972–1973|
1556 or 1175 or 403
— to —
1557 or 1176 or 404
- October 16 – King James II of Scotland (died 1460)
- October 28 – Richard West, 7th Baron De La Warr, English politician (died 1475)
- date unknown – Hosokawa Katsumoto, Japanese warlord
- probable – Heinrich Kramer, German churchman and inquisitor (died 1505)
- January 29? – Andrei Rublev, Russian iconographer (born 1360)
- August 14 – Philip I, Duke of Brabant (b. 1404)
- August 18 – Thomas de Ros, 9th Baron de Ros, English soldier and politician (b. 1406)
- October 27 – Vytautas the Great, Grand Prince of Lithuania (born 1352)
- date unknown
- Thomas FitzAlan, English nobleman
- Christine de Pizan, proto-feminist writer