September 4– the Republic of Venice signs a treaty with the Ottoman Empire to end the eight-year war between the two nations after the Ottoman capture of Thessalonica, replacing the previous agreement of 1419.
October–December
October 27–Vytautas, the Grand Duke of Lithuania, dies shortly after the cancellation of plans to crown him as King of Lithuania. His cousin Švitrigaila is elected unanimously by the Lithuanian nobles as the new Grand Duke, violating an agreement with the Kingdom of Poland that the Polish nobles would be able to participate in the election.
November 16– (1st waxing of Natdaw 792 ME) In Burma, Min Saw Mon, King of Arakan, moves the capital from Launggyet to the nearby, but more strategically located, city of Mrauk-U.
↑Lysý, Miroslav (2007). "Husitské vpády do Uhorska 1428 – 1431"[The Hussite Raids into the Kingdom of Hungary in 1428 – 1431]. Historický časopis (in Slovak) (3): 420. Retrieved 12 December 2016.
↑Zunz, Leopold (1907). The Sufferings of the Jews During the Middle Ages. Bloch Publishing Company.
↑"Order of Friars Minor", by Michael Bihl, in The Catholic Encyclopedia, Vol. 6. (New York: Robert Appleton Company, 1909)
↑Fabris, Antonio (1992). "From Adrianople to Constantinople: Venetian–Ottoman diplomatic missions, 1360–1453". Mediterranean Historical Review. 7 (2): 177–180. doi:10.1080/09518969208569639.
↑Kiaupa, Zigmantas; Jūratė Kiaupienė; Albinas Kuncevičius (2000) [1995]. The History of Lithuania Before 1795 (Englished.). Vilnius: Lithuanian Institute of History. pp.205–211. ISBN9986-810-13-2.
↑Lucien-René Delsalle, Rouen et les Rouennais au temps de Jeanne d'Arc (Rouen and the people of Rouen in the time of Joan of Arc) (Éditions des Falaises, 1982)