1417

1417 (MCDXVII) was a common year starting on Friday of the Julian calendar, the 1417th year of the Common Era (CE) and Anno Domini (AD) designations, the 417th year of the 2nd millennium, the 17th year of the 15th century, and the 8th year of the 1410s decade. As of the start of 1417, the Gregorian calendar was 9 days ahead of the Julian calendar, which was the dominant calendar of the time.

Events of 1417

• April 18 – Frederick I, Elector of Brandenburg begins to rule as margrave of Brandenburg
• June 24 – The Isle of Man holds the first known Tynwald Day; the annual meeting of its parliament Tynwald which has continued every year until present.
• July 27 – Avignon Pope Benedict XIII is deposed, bringing to an end the Great Western Schism.
• November 11 – Pope Martin V succeeds Pope Gregory XII as the 206th pope.
• The use of street lighting is first recorded in London, when Sir Henry Barton, the mayor, orders lanterns with lights to be hung out on the winter evenings between Hallowtide and Candlemas.

Births

• February 23 – Pope Paul II (d. 1471)
• June 19 – Sigismondo Pandolfo Malatesta, lord of Rimini (died 1468)
• November 23 – William FitzAlan, 16th Earl of Arundel, English politician (died 1487)
• date unknown
  • Jöns Bengtsson Oxenstierna, regent of Sweden
  • Nicholas of Flüe, Swiss hermit and saint (died 1487)

Deaths

• January – Art mac Art MacMurrough-Kavanagh, King of Leinster (born 1357)
• April 29 – Louis II of Naples (born 1377)
• September 4 – Robert Hallam, English Catholic bishop
• September 16 – Francesco Zabarella, Italian jurist (b. 1360)
• October 18 – Pope Gregory XII
• December 14 – John Oldcastle, English Lollard leader
• probable – Huitzilíhuitl, Aztec ruler of Tenochtitlan