Year 1447 (MCDXLVII) was a common year starting on Sunday of the Julian calendar.

• March 6 – Pope Nicholas V succeeds Pope Eugene IV, to become the 208th pope.^[1]
• March 16 – A major fire destroys the centre of Valencia.
• September 15 – Roman II seizes the throne of Moldavia after killing his uncle, Stephen II, and will have his other uncle, Petru as co-ruler.
• December
  • Vlad II Dracul, ruler of Wallachia, and his eldest son Mircea are assassinated. Vladislav II succeeds him, with the assistance of John Hunyadi.
  • The Albanian–Venetian War of 1447–48 begins.

• The Siege of Soest, Germany, occurs, in the course of the Soest Feud.
• Tashi Lhunpo Monastery is founded by the 1st Dalai Lama at its original location in Shigatse, Tibet.^[2]
• Iizasa Ienao founds Tenshin Shōden Katori Shintō-ryū, the earliest historically verifiable Japanese koryū martial art, that will still be extant in modern times.^[3]

• February 1 – Eberhard II, Duke of Württemberg (d. 1504)
• February 4 – Lodovico Lazzarelli, Italian poet (d. 1500)
• April 5 – Catherine of Genoa, Italian author and nurse (d. 1510)
• April 17 – Baptista Mantuanus, poet and carmelite (d. 1516)
• June 27 – Jean IV de Rieux, Breton noble and Marshal (d. 1518)
• July 5 – Costanzo I Sforza, Italian noble (d. 1483)
• September 10 – Paolo da San Leocadio, Italian painter in Spain (d. 1520)
• October 30 – Lucas Watzenrode, Prince-Bishop of Warmia (d. 1512)
• December 3 – Bayezid II, Ottoman Sultan (d. 1512)
• December 9 – Chenghua Emperor of China (d. 1487)
• December 15 – Albert IV, Duke of Bavaria (d. 1508)
• date unknown
  • Piero Capponi, Italian soldier and statesman (d. 1496)
  • Philippe de Commines, Flemish historian (d. 1511)^[4]
  • Catherine of Genoa, Catholic mystic (d. 1510)
• probable
  • Giovanni Antonio Amadeo, Italian sculptor (d. 1522)

• February 23
  • Pope Eugene IV (b. 1383)^[5]
  • Humphrey, Duke of Gloucester (b. 1390)
• March 6 – Colette of Corbie, French abbess and saint in the Catholic Church (b. 1381)^[6]
• March 13 – Shahrukh Mirza, ruler of Persia and Transoxonia (b. 1377)
• March 31 – Robert Long, English politician (b. 1390)
• April 11 – Henry Beaufort, Cardinal, Lord Chancellor of England (b. 1377)
• April 22 – Yaqub al-Charkhi, Sufism (b. 1359)
• May 1 – Louis VII, Duke of Bavaria-Ingolstadt (b. 1368)
• May 12 – Hein Hoyer, German politician (b. 1380)
• July 6 – António Martins de Chaves, Catholic cardinal (b. 1390)
• July 9 – Gruffudd Vychan, Welsh knight (b. 1390)
• July 13 – Stephen II of Moldavia, Prince of Moldavia (b. 1410)
• August 5 – John Holland, 2nd Duke of Exeter, English nobleman and military commander (b. 1395)
• August 9 – Konrad IV the Elder, Polish priest (b. 1380)
• August 13 – Filippo Maria Visconti, Duke of Milan (b. 1392)
• October 31 – Tommaso Bellacci, Italian Roman Catholic professed member of the Third Order of Saint Francis (b. 1370)
• November 17 – Euphemia of Münsterberg, German sovereign (b. 1385)^[7]
• November 21 – Biagio Molino, Roman Catholic patriarch (b. 1380)
• December – Vlad II Dracul, Prince of Wallachia, and his son Mircea II^[8]

• New Advent. (2020). 'Pope Nicholas V'. Retrieved from http://www.newadvent.org/cathen/11058a.htm
• https://www.hisdates.com/years/1447-historical-events.html
• https://www.onthisday.com/date/1447