On This Day

Siege of Constantinople begins during the Fourth Crusade, as Roman Catholic Crusaders, aboard a Venetian fleet, attack t

Siege of Constantinople begins during the Fourth Crusade, as Roman Catholic Crusaders, aboard a Venetian fleet, attack the city

Siege of Constantinople begins during the Fourth Crusade, as Roman Catholic Crusaders, aboard a Venetian fleet, attack the city

Events Before

  1. Louis of France (Later Louis VIII) (13) marries Blanche of Castile (12), daughter of Alfonso VIII King of Castile at Por

    Louis of France (Later Louis VIII) (13) marries Blanche of Castile (12), daughter of Alfonso VIII King of Castile at Port-Mort

  2. King John of England (32) marries Isabella of Angoulême (12) in Bordeaux, despite her engagement to Hugh de Lusignan, Co

    King John of England (32) marries Isabella of Angoulême (12) in Bordeaux, despite her engagement to Hugh de Lusignan, Count of La Marche, prompting a rebellion

  3. Treaty of Le Goulet signed between France and England

    The Treaty of Le Goulet was a treaty signed by Kings John of England and Philip II of France in May 1200.

  4. In China, sunglasses are invented

    Sunglasses or sun glasses (informally called shades or sunnies; more names below) are a form of protective eyewear designed primarily to prevent bright sunlight and high-energy visible light from...

  5. The city of Riga is founded

    Albert of Riga or Albert of Livonia (1165 – 17 January 1229) was the third Catholic Bishop of Riga in Livonia.

Events After

  1. The Fourth Crusade occupies and plunders Constantinople

    The Fourth Crusade (1202–1204) was a Latin Christian armed expedition called by Pope Innocent III.

  2. Crusaders occupy Constantinople during the Fourth Crusade

    The Fourth Crusade (1202–1204) was a Latin Christian armed expedition called by Pope Innocent III.

  3. Baldwin IX, Count of Flanders, is crowned as the first Emperor of the Latin Empire of Constantinople

    Baldwin I (Dutch: Boudewijn; French: Baudouin; July 1172 – c. 1205) was the first Emperor of the Latin Empire of Constantinople; Count of Flanders (as Baldwin IX) from 1194 to 1205 and Count of...

  4. King Philip Augustus of France conquers Rouen

    John (Christmastide 1166/7 – 19 October 1216) was King of England from 1199 until his death in 1216.

  5. Philip of Swabia becomes King of the Romans

    Philip of Swabia becomes King of the Romans

More from the 1200s

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What happened on July 17, 1203?
Siege of Constantinople begins during the Fourth Crusade, as Roman Catholic Crusaders, aboard a Venetian fleet, attack the city

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