page_title: 1440
section_title: Deaths
hierarchical_section_title: 1440 / Deaths
caption_attribution_description: Seal of Sigismund Great Duke of Lithuania 1436
context_page_description: 1440 was a leap year starting on Friday of the Julian calendar, the 1440th year of the Common Era and Anno Domini designations, the 440th year of the 2nd millennium, the 40th year of the 15th century, and the 1st year of the 1440s decade. As of the start of 1440, the Gregorian calendar was 9 days ahead of the Julian calendar, which was the dominant calendar of the time.
context_section_description: March 9 – Frances of Rome, Italian Benedictine nun and saint (b. 1384)
  March 20 – Sigismund Kęstutaitis, Grand Duke of Lithuania (b. 1365)
  April 2 – Giovanni Vitelleschi, Italian Roman Catholic bishop and soldier
  April 6 – Henry Wardlaw, Scottish church leader
  September 20 – Frederick I, Elector of Brandenburg (b. 1371)
  September 30 – Reginald Grey, 3rd Baron Grey de Ruthyn, English soldier and politician
  October 12 – Ginevra d'Este (b. 1419)
  October 26 – Gilles de Rais, French soldier (b. 1404)
  November 13 – Joan Beaufort, Countess of Westmoreland
  date unknown –
  Itzcóatl, Aztec Tlatoani (ruler) of Tenochtitlan
caption: Sigismund Kęstutaitis
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