1400s

These are some important events that happened in the years from 1400 to 1410.
1400
Henry IV stops the Epiphany Rising. He kills the people who try to have Richard II of England restored as King.
The princes of the German states remove Wenceslaus as Holy Roman Emperor.
Rupert is elected as Holy Roman Emperor.
Owain Glyndwr is called Prince of Wales by his followers. He begins attacking Englishplaces in north-east Wales.
Manuel II Palaiologos becomes the first (and last) Byzantine Emperor to visit England.
The Medici family becomes powerful in Florence.
Births
Luca della Robbia, Florentine sculptor
Owen Tudor, Welsh courtier (d. 1461)
Deaths
January 5 - John Montacute, 3rd Earl of Salisbury, English politician (executed)
January 5 - Thomas Holland, 1st Duke of Surrey, English politician (executed)
January 13 - Thomas le Despenser, 1st Earl of Gloucester, English politician (executed)
January 16 - John Holland, 1st Duke of Exeter, English politician (executed)
February 14 - King Richard II of England (probably murdered)
April 28 - Baldus de Ubaldis, Italian jurist
June 5 - Frederick, Duke of Brunswick-Luneburg, rival Holy Roman Emperor
October 25 - Geoffrey Chaucer, English poet
December 24 - Archibald the Grim, Scottish magnate
Narayana Pandit, Indian mathematician
1401
Timur raids the city of Baghdad in the Jalayirid Empire.
A civil war starts in the Majapahit Empire in present-day Indonesia.
Births
May 12 - Emperor Shoko of Japan
October 27 - Catherine of Valois, queen of Henry VI of England
December 21 - Tommaso Masaccio, Italian painter
Deaths
October 20 - Klaus Stortebeker, German pirate
Anabella Drummond, queen of Scotland
1402
King Jogaila of the Poland-Lithuania union marries Anna of Celje. She is a granddaughter of Casimir III of Poland.
May 21 - Following the death of Queen Maria of Sicily, her husband Martin I of Sicily marries Blanche of Navarre.
The University of Wurzburg, Germany, is founded.
The Great Comet of 1402 is sighted.
Births
September 29 - Fernando, the Saint Prince of Portugal
Leonor of Aragon, Queen of Portugal
Deaths
March 26 - David Stewart, Duke of Rothesay, heir to the throne of Scotland
May 3 - Joao Anes, Archbishop of Lisbon
July 13 - Jianwen Emperor of China
1403
February 7 - King Henry IV of England marries Joanna of Navarre.
Henry 'Hotspur' Percy forms an alliance with Welsh rebel Owain Glyndwr.
July 21 - Battle of Shrewsbury: King Henry IV of England defeats a rebel army led by "Hotspur" Percy. Percy is killed in the battle by an arrow in his face.
In China, the Ming Emperor Yongle moves the capital from Nanjing to Beijing.
The world's first quarantine station is built in Venice. It is to protect against the Black Death.
Stefan Lazarevic makes Belgrade the capital of the Serbian Despotate.
Births
January 17 - George Kastrioti of Albania
February 22 - King Charles VII of France
June 11 - John IV, Duke of Brabant
Robert Wingfield, English politician
Louis III of Naples
Deaths
May 10 - Katherine Swynford, widow of John of Gaunt
May 12 - William de Lode, English prior
July 23 - Thomas Percy, 1st Earl of Worcester, English rebel (executed)
Beyazid, Ottoman Sultan
Hajji Zayn al-Attar, Persian physician
Durad II Stracimirovic, Serbian nobleman
1404
June 14 - Rebel leader Owain Glyndwr allies with the French against the English.
October 17 - Pope Innocent VII succeeds Pope Boniface IX as the 204th pope.
November 19 - St. Elizabeth's flood ruins parts of Flanders, Zeeland and Holland.
Jean de Bethencourt becomes the first ruler of the Kingdom of the Canary Islands.
Stephan Tvrtko II succeeds Stefan Ostoja as King of Bosnia.
The University of Turin is founded.
Births
February 9 - Constantine XI, last Byzantine Emperor
February 18 - Leon Battista Alberti, Italian painter, poet, and philosopher
March 25 - (baptism) - John Beaufort, 1st Duke of Somerset, English military leader
June - Murad II, Ottoman Sultan
July 25 - Philip I, Duke of Brabant
September 10 - Gilles de Rais, French aristocrat
October 14 - Marie of Anjou, queen of Charles VII of France
Yamana Sozen, Japanese warlord and monk
Deaths
April 27 - Philip II, Duke of Burgundy
September 14 - Duke Albert IV of Austria
September 23 - Eleanor of Arborea, ruler of Sardinia
September 27 - William of Wykeham, English bishop and statesman
October 1 - Pope Boniface IX
October 15 - Marie Valois, French princess
December 13 - Albert, Count of Holland
1405
June 8 - Archbishop Richard le Scrope of York and Thomas Mowbray, Earl of Norfolk, were executed in York on Henry IV's orders.
Bath Abbey is built in England.
First written record of whiskey being drank is recorded in Ireland. It was distilled by Catholic monks.
Early feminist Christine de Pizan writes The Book of the City of Ladies.
Births
March 6 - King John II of Castile
May 6 - George Kastrioti, Albanian national hero
October 18 - Pope Pius II
Deaths
February 14 - Timur, Turco-Mongol monarch and conqueror
May 29 - Philippe de Mezieres, advisor to Charles V of France
1406
April 4 - James I becomes King of Scotland.
October 26 - Eric of Pomerania marries Philippa, daughter of Henry IV of England.
November 30 - Pope Gregory XII succeeds Pope Innocent VII as the 205th pope.
December 25 - John II becomes King of Castile.
Construction of the Forbidden City begins in Beijing.
Births
September 26 - Thomas de Ros, 9th Baron de Ros, English soldier and politician
Ulrich II of Celje
Lorenzo Valla, humanist
Deaths
January 6 - Roger Walden, English bishop
March 19 - Ibn Khaldun, Arab historian
April 4 - King Robert III of Scotland
May 4 - Coluccio Salutati, Chancellor of Florence
July 15 - Duke William of Austria
August 28 - John de Sutton V
November 1 - Joanna, Duchess of Brabant
November 6 - Pope Innocent VII
December 25 - King Henry III of Castile
1407
April 10 - The fifth Karmapa finally visits the Ming Dynasty capital, then at Nanjing.
November 23 - The Duke of Orleans is killed; war starts again between the Burgundians and his followers.
Rudolfo Belenzani leads a revolt against Bishop Georg von Liechtenstein in Trento, Italy.
Births
March 15 - Jacob, Margrave of Baden-Baden
August 27 - Ashikaga Yoshikazu, Japanese shogun
Thomas de Littleton, English judge
Deaths
March 7 - Francesco I Gonzaga, ruler of Mantua
April 23 - Olivier de Clisson, French soldier
November 23 - Louis of Valois, Duke of Orleans, brother of Charles VI of France
Pero Lopez de Ayala, Spanish soldier
Tokugawa Chikauji, Japanese nobleman
1408
December 13 - The Order of the Dragon is founded under King Sigismund of Hungary.
Henry, Prince of Wales retakes Aberystwyth from Owain Glyndwr.
Births
April 8 - Jadwiga of Lithuania, Polish princess
Deaths
May 31 - Ashikaga Yoshimitsu, Japanese shogun
Pope Matthew of Alexandria
Elizabeth le Despenser, English noblewoman
John VII Palaiologos, Byzantine Emperor
Miran Shah, son of Timur
1409
January 1 - The Welsh surrender Harlech Castle to the English.
December 2 - The University of Leipzig opens.
Martin I of Aragon becomes King of Sicily.
Ulugh Beg becomes governor of Samarkand.
Venice buys the port of Zadar from Hungary.