Explore 66 historical events from 1400–1409.
Gian Galeazzo Visconti, was the first duke of Milan (1395) and ruled that late-medieval city just before the dawn of the Renaissance. He also ruled Lombardy jointly with his uncle …
Gian Galeazzo Visconti, Italian son of Galeazzo II Visconti (born 1351)
Emperor Shōkō was the 101st emperor of Japan, according to the traditional order of succession. His reign spanned the years from 1412 through 1428.
Emperor Shōkō of Japan (died 1428)
Francesco I Sforza was an Italian condottiere who founded the Sforza dynasty in the duchy of Milan, ruling as its (fourth) duke from 1450 until his death. Renowned for his military…
Francesco I Sforza, Italian husband of Bianca Maria Visconti (died 1466)
Jacqueline, of the House of Wittelsbach, was a noblewoman who ruled the counties of Holland, Zeeland and Hainaut in the Low Countries from 1417 to 1433. She was also Dauphine of Fr…
Jacqueline, Countess of Hainaut (died 1436)
Maria of Castile was Queen of Aragon and Naples as the spouse of Alfonso V of Aragon. Maria acted twice as the regent of Aragon during the reign of her spouse, as he was absent dur…
Maria of Castile, Queen consort of Aragon and Naples (died 1458)
Vladislaus II of Opole, nicknamed Naderspan, was Duke of Opole from 1356, Count palatine of Hungary (1367–1372), Duke of Wieluń (1370–1392), Governor of Ruthenia (1372–1378), Count…
Vladislaus II of Opole (born 1332)
The Schaffhausen massacre was an anti-Semitic episode in Schaffhausen, in present-day Switzerland, which occurred in 1401. An episode of antisemitism had already occurred in Schaff…
Schaffhausen massacre: 30 Jews were executed, following torture, after being accused of a blood libel in Schaffhausen (i
Timur, also known as Tamerlane, was a Turco-Mongol conqueror, first ruler of the Timurid dynasty, and the founder of the Timurid Empire, which ruled over modern-day Afghanistan, Ir…
Timur attacks the Jalairid Sultanate and destroys Baghdad.
Dobrogost z Nowego Dwóru was a medieval bishop in Poland. He was Bishop of Poznań from 1384 until 1395 and then Archbishop of Gniezno from 1395 till 1401.
Dobrogost of Nowy Dwór, Polish bishop (born 1355)
Owain ap Gruffudd Fychan or Owain Glyndŵr was a Welsh nobleman and military commander in the late Middle Ages who led a revolt with the aim of establishing an independent Wales fre…
Owain Glyndŵr is declared Prince of Wales by his followers.
John Stourton, 1st Baron Stourton of Stourton, Wiltshire, was an English soldier and politician, elevated to the peerage in 1448.
John Stourton, 1st Baron Stourton, English soldier and politician (died 1462)
Isabel le Despenser, Countess of Worcester and Warwick, LG was the posthumous daughter and eventually the sole heiress of Thomas le Despenser, 1st Earl of Gloucester by his wife, C…
Isabel le Despenser, Countess of Worcester, English noble (died 1439)
John Wittlebury or Whittlebury was an English Member of Parliament.
John Wittlebury, English politician (born 1333)
Aubrey de Vere, 10th Earl of Oxford was the third son of John de Vere, 7th Earl of Oxford and Maud de Badlesmere, daughter of Bartholomew de Badlesmere, 1st Lord Badlesmere.
Aubrey de Vere, 10th Earl of Oxford, English politician and nobleman (born c
Baldus de Ubaldis was an Italian jurist, and a leading figure in Medieval Roman Law and the school of Postglossators.
Baldus de Ubaldis, Italian jurist (born 1327)
Frederick, a member of the House of Welf, was Duke of Brunswick-Lüneburg and ruling Prince of Brunswick-Wolfenbüttel from 1373 until his death. In May 1400, he unsuccessfully stood…
Frederick I, duke of Brunswick-Lüneburg
Jan of Jenštejn was a Bohemian archbishop, composer and poet. From 1379 to 1396 he was the Archbishop of Prague. He studied in Bologna, Padua, Montpellier and Paris.
Jan of Jenštejn, archbishop of Prague (born 1348)
John Holland, 1st Duke of Exeter, 1st Earl of Huntingdon of Dartington Hall in Devon, was a half-brother of King Richard II (1377–1399), to whom he remained strongly loyal. He is p…
John Holland, 1st Duke of Exeter (born c. 1352)