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Heads of State · Nekrolog

Depiction of the conquest of Constantinople, picture probably dates from the 14th or 15th century
The Crusaders of the Fourth Crusade conquer, plunder and burn Constantinople .
Successor states of the Byzantine Empire
The Byzantine Empire is divided into several crusader states. The Byzantines found the Nikaia Empire .
1204 in other calendars
Armenian calendar 652/653 (turn of the year July)
Ethiopian calendar 1196/97
Buddhist calendar 1747/48 (southern Buddhism); 1746/47 (alternative calculation according to Buddhas Parinirvana )
Chinese calendar 64./65. (65./66.) Cycle

Year of the Wood Rat甲子 ( at the beginning of the year Water Pig 癸亥)

Chula Sakarat (Siam, Myanmar) / Dai calendar (Vietnam) 566/567 (turn of the year April)
Iranian calendar 582/583
Islamic calendar 600/601 (turn of the year 28/29 August)
Jewish calendar 4964/65 (August 27-28)
Coptic calendar 920/921
Malayalam calendar 379/380
Seleucid era Babylon: 1514/15 (turn of the year April)

Syria: 1515/16 (turn of the year October)

Spanish era 1242
Vikram Sambat (Nepalese Calendar) 1260/61 (turn of the year April)


Politics and world events

Fourth crusade

Alexios V.
Coronation of Baldwin,
miniature from the 15th century.
Stamenon of Theodoros Mankaphas
  • The former Byzantine counter-emperor Theodoros Mankaphas returns to his hometown Philadelphia after the fall of Constantinople and declares himself emperor again.


The ruins of Château Gaillard
The campaign of Philip II (blue) to conquer Normandy in 1204
  • Philip II. Conquered without much of a fight Argentan while defended by the mercenary leader Lupescar Falaise capitulated after only one week. Lupescar now changes sides and joins Philip II. Philip then occupied Caen , the old capital of Normandy, without a fight , and as a result numerous barons in the area pay homage to the French king as their new feudal lord.
Document of surrender from Rouen
  • At the beginning of May a Breton army advanced to the west of Normandy, conquered Mont-Saint-Michel and Avranches and united with the French army at Caen. While a division of the army was occupying the Cherbourg peninsula, the main French army was advancing to Rouen via Liseux . To prevent a senseless destruction of Rouen, Pierre de Préaux , the English commander of the city , agreed a thirty-day armistice with the French on June 1st . When it finally became clear that no relief army would come from England , he surrendered before the end of the ceasefire on June 24th , with which Normandy was lost to Johann Ohneland .
  • August: Philipp triumphantly moves into Poitiers . Only parts of the Poitou with La Rochelle and Gascony now remain in Johann's hands.


Holy Roman Empire

Hungary / Croatia


City rights and first documentary mentions

science and technology

  • around 1204: The English monk Roger von Wendover begins to write his world chronicle Flores Historiarum .



Date of birth saved

Exact date of birth unknown

Born around 1204


Date of death secured

Exact date of death unknown

Web links

Commons : 1204  - Collection of pictures, videos and audio files