Editing 1402 (section)

=== July&ndash;September ===
* [[July 17]] &ndash; The [[Ming dynasty]] prince Zhu Di of Yan is formally crowned as the new [[Yongle Emperor|Ming Dynasty Emperor Yongle]] at Nanjing, marking the end of the [[Jingnan campaign]].
* [[July 20]] &ndash; [[Battle of Ankara]]: An invading [[Timurid Empire]] force defeats the [[Ottoman Empire|Ottoman]] Sultan [[Bayezid I]], who is captured.  A [[Ottoman Interregnum|period of interregnum]] begins in the Ottoman Empire, with the future [[Mehmed I]] as one of the leading claimants to the throne. After [[Serbia]] is freed from Ottoman rule, [[Stefan Lazarević]] is crowned Despot of [[Serbian Despotate|Serbia]].
* [[August 1]] &ndash; [[Edward, 2nd Duke of York|Edward of Norwich]] becomes the second [[Duke of York]] in England upon the death of his father, [[Edmund of Langley, 1st Duke of York|Edmund of Langley]]. He will serve until his death in [[1415]] in the [[Battle of Agincourt]].
* [[August 15]] &ndash; [[Henry III of Castile|King Enrique III]] of [[King of Castile|Castile]] and [[King of León|León]] (comprising most of [[Spain]]) signs a peace treaty with his brother-in-law, [[John I of Portugal|King João I of Portugal]], ending fighting that began in 1396. The wives of the two kings, [[Catherine of Lancaster]] and [[Philippa of Lancaster]] respectively, are sisters.
* [[September 3]] &ndash; [[Gian Maria Visconti]] becomes the second [[List of dukes of Milan|Duke of Milan]] upon the death of his father, [[Gian Galeazzo Visconti]].
* [[September 14]] &ndash; [[Battle of Homildon Hill]]: Northern English nobles, led by Sir [[Henry Percy (Hotspur)]], and using [[longbow]]s, decisively defeat a Scottish raiding army and capture their leader, the [[Archibald Douglas, 4th Earl of Douglas|Earl of Douglas]].
* [[September 30]] &ndash; The new session of the English Parliament is opened by King Henry IV and lasts for almost two months.