1447

1447 (MCDXLVII) was a common year starting on Sunday of the Julian calendar, the 1447th year of the Common Era (CE) and Anno Domini (AD) designations, the 447th year of the 2nd millennium, the 47th year of the 15th century, and the 8th year of the 1440s decade. As of the start of 1447, the Gregorian calendar was 9 days ahead of the Julian calendar, which was the dominant calendar of the time.

• March 6 – Pope Nicholas V succeeds Pope Eugene IV as the 208th pope.
• December – Vlad II Dracul, ruler of Wallachia and his eldest son Mircea are assassinated. Vladislav II succeeds him with the assistance of John Hunyadi.

• December 9 – Chenghua Emperor of China (died 1487)
• date unknown
  • Piero Capponi, Italian soldier. (died 1496)
  • Philippe de Commines, Flemish historian (died 1511)
  • Catherine of Genoa, woman mystic (died 1510)
• Giovanni Antonio Amadeo, Italian sculptor (died 1522)
• Bayezid II, Ottoman Sultan (died 1512)

• February 23
  • Pope Eugene IV (born 1383)
  • Humphrey, Duke of Gloucester (born 1390)
• March 12 – Shah Rukh, ruler of Persia and Transoxonia (born 1377)
• April 11 – Henry Cardinal Beaufort, Lord Chancellor of England (born 1377)
• August 13 – Filippo Maria Visconti, Duke of Milan (born 1392)
• December – Vlad II Dracul, Prince of Wallachia
• date unknown
  • John Holland, 2nd Duke of Exeter (born 1395)