1204
8 February
Alexius IV murdered; succeeded by anti-Latin Alexius V Ducas;
12 April
Latins capture Constantinople and establish a Latin Empire in Greece;
Exact date unknown
Al-Adil and Aimery agree on the restoration of Jaffa to Frankish control by diplomatic means.
1205
1 April
King Aimery of Cyprus and Jerusalem dies; Walter de Montbelliard named regent of Cyprus for underaged heir Hugh;
May
Queen Isabella of Jerusalem dies; John d’Ibelin named regent for underaged heir Marie de Montferrat.
1208
December
Frederick II Hohenstaufen comes of age (14) and takes control of his Kingdom of Sicily.
1210
September
Hugh de Lusignan comes of age; accuses Montbelliard of malfeasance; Maria de Montferrat marries John de Brienne;
October
Maria and John crowned queen and king-consort of Jerusalem.
1212
November
Queen Maria dies giving birth to a daughter, ‘Yolanda’; Brienne rules alone.
1213
April
Pope Innocent III calls for a new crusade (‘Fifth Crusade’).
1215
15 June
Magna Carta signed by King John in England;
25 July
Frederick II crowned king of the Germans in Aachen.
1217
July
King Andrew II of Hungary is first to embark on the new crusade;