1390
year
Year 1390 (MCCCXC) was a common year starting on Saturday (link will display full calendar) of the Julian calendar.
Events
January–March
January 19 – The Treaty of Lyck confirms an alliance between Vytautas and the Teutonic Knights, in the Lithuanian Civil War against Vytautas's cousin, Jogaila.
January 23 – Ko Cheng succeeds Che Bong Nga, as King of Champa (now eastern Vietnam).
February 16 – At Heidelberg (now in Germany) Ruprecht II of the House of Wittelsbach becomes the new Elector of the Palatinate in the Holy Roman Empire upon the death of his uncle, Rupert I.
March 20 – Manuel III succeeds his father, Alexios III, as Emperor of Trebizond (now north eastern Turkey).
April–June
April 14 – John VII Palaiologos overthrows his grandfather, John V Palaiologos, as Byzantine Emperor.
April 19 – Robert III succeeds his father, Robert II, as King of Scotland.
May 26 – Lithuanian Civil War: The Treaty of Königsberg is signed in Königsberg, between Samogitian nobles and representatives of the Teutonic Knights.
June 7 – Construction begins on San Petronio Basilica in Bologna.
July–September
July 1 – The Barbary Crusade begins as the Kingdom of France and the Republic of Genoa attempt to stop the raids of the Barbary pirates by invading the North African region of Ifriqiya and laying siege to Mahdia in what is now Tunisia. Louis II, Duke of Bourbon and Giacomo Fregoso of Genoa bring 6,000 knights and soldiers on 60 ships against 40,000 Muslim defenders led by the Caliph Abu al-Abbas Ahmad II of the Hafsid Sultanate and the Sultan Abu Tashufin II of Tlemcen.
“1390” enters the record as year. Crown Archives preserves that source wording while asking what year can confirm, complicate or overturn.
Why this record matters
“1390” is worth following because a concise public description often conceals a longer documentary argument. Here, year provides the most credible route into that argument.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 27, 2026. The linked authority identifier is Q6375. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1390.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
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The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “1390”, its source revision and the description used here.
- Expand the search: follow 1390 primary sources, 1390 archive and year research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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This entry incorporates text from “1390” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.