Events of the Year 1398
The year 1398 (MCCCXCVIII) was a common year starting on Tuesday of the Julian calendar.
January–December
- March 15 – Trần Thuận Tông is forced to abdicate as ruler of the Trần dynasty in modern-day Vietnam, in favor of his three-year-old son Trần Thiếu Đế.
- April–May – The Bosnian nobility dethrone Queen Helen and replace her with Stephen Ostoja.
- June 25 – Jianwen succeeds his grandfather, Hongwu, as Emperor of the Ming dynasty in China.
- July – The Stecknitz Canal is completed between the rivers Elbe and Trave (at Lübeck) in modern-day north Germany, marking one of the earliest navigable summit-level canals in the world.
- September – King Richard II of England exiles his cousin Henry Bolingbroke (the future Henry IV of England) for 10 years, to resolve a feud with Thomas de Mowbray, 1st Duke of Norfolk, who is also exiled.
- As France withdraws support for Antipope Benedict XIII, an army led by Geoffrey Boucicaut occupies Avignon and starts a five-year siege of the papal palace.
- October 12 – The Treaty of Salynas is signed by Vytautas, Grand Duke of Lithuania, and Konrad von Jungingen, Grand Master of the Teutonic Knights, ceding Samogitia to the Knights.
- October 14 – King Taejo of Joseon abdicates following the murder of his heir Yi Bangsuk during a coup led by Yi Bang-won. Jeongjong, Taejo’s eldest son, succeeds to the throne.
- November 11 – Janus succeeds his father, James I, as King of Cyprus and claimant to the throne of Armenian Cilicia.
- December 17 – Timur defeats the last ruler of the Delhi Sultanate, after a four-year civil war. His troops sack Delhi and massacre hundreds of thousands of Hindu inhabitants.
Date Unknown
- The Teutonic Knights recommence their raids of Lithuania.
- The Teutonic Knights conquer the island of Gotland, near Sweden.
- Martin of Aragon launches a crusade against the Moors in North Africa.
- The Kingdom of Singapura falls to invasion by the Majapahit Empire.
- Abdullah succeeds Abu Amir as ruler of the Marinid dynasty in modern-day Morocco.
- Bunei succeeds his father, Satto, as King of Chūzan (modern-day central Okinawa, Japan).
- Glendalough monastery in Wicklow, Ireland is destroyed by English troops.
- Ferapontov Monastery is founded in modern-day northwest Russia.
- The Munmyo Confucian shrine and Sungkyunkwan University are founded in modern-day Seoul.
- Mount Grace Priory is established in Yorkshire, England.
- According to fringe theorists, the Scottish explorer Henry I Sinclair, Earl of Orkney, reaches North America.
Births
- August 19 – Íñigo López de Mendoza, 1st Marquis of Santillana, Spanish poet (d. 1458)
- Date Unknown – Cecília Rozgonyi, Hungarian noble and heroine (d. 1434)
- Date Unknown – Spytko III of Melsztyn, Polish nobleman (d. 1439)
- Date Unknown – Moctezuma I, second Aztec emperor (d. 1469)
- Date Unknown – William Waynflete, English Lord Chancellor and bishop of Winchester (d. 1486)
- Date Unknown – Johannes Gutenberg, German inventor of the printing press
- Date Unknown – Tlacaélel, Aztec warrior, thinker, high priest, and noble for the Mexica Empire (d. 1487)
Deaths
- January 6 – Rupert II, Elector Palatine (b. 1325)
- January 31 – Former Emperor Sukō of Japan (b. 1334)
- June 24 – Hongwu Emperor of China (b. 1328)
- July 20 – Roger Mortimer, 4th Earl of March, heir to the throne of England (b. 1374)
- July/August (uncertain) – Kadi Burhan al-Din, poet, kadi, and ruler of Sivas (b. 1345)
- September 9 – James I of Cyprus (b. 1334)
- October 5 – Blanche of Navarre, Queen of France (b. 1333)
- Date Unknown – Jeong Dojeon, Korean philosopher