1427

Events 
August 4 – Hussite Wars: Battle of Tachov The Hussites decisively beat the crusader armies, ending the Fourth Anti-Hussite Crusade.
August 17 – First band of Gypsies visits Paris, according to an account of the citizen of Paris.
Lincoln College, a constituent college of the University of Oxford, is founded.
Balsics rule of Montenegro comes to an end.
Bhaktapur Royal Palace in Nepal is built by King Yaksa Malla.
Gabriel V elected Patriarch of the Coptic Church for the second time.
Minrekyansa becomes King of Ava (ancient Burma).
 Conflict of Druimnacour in Sutherland, Scotland.
 First witch hunts begin, in Switzerland.
 Celestine Order established in France.
 Celebration of Sant Jordi (Saint George) begins in Catalonia (he would later become its patron saint).
 Bremen is expelled from the Hanseatic League.
Diogo de Silves, Portuguese navigator, discovers seven islands of the Azores archipelago.

 Births 
September 9 – Thomas de Ros, 10th Baron de Ros, English politician (died 1464)
October 14 – Alesso Baldovinetti, Italian painter (died 1499)
October 26 – Archduke Sigismund of Austria (died 1496)
November 29 – Zhengtong Emperor of China (died 1464)
November 30 – Casimir IV Jagiellon, King of Poland (died 1492)
date unknown
Shen Zhou, Chinese painter (d. 1509)

 Deaths 
April 17 – John IV, Duke of Brabant (b. 1403)
May 7 – Thomas la Warr, 5th Baron De La Warr, English churchman
August 27 – Reginald West, 6th Baron De La Warr (born 1395)
date unknown
Chimalpopoca, Aztec ruler of Tenochtitlán (born 1397)
Qu You, Chinese novelist (born 1341)
probable
Jehuda Cresques, Catalan cartographer (born 1350)
Gentile da Fabriano, Italian painter