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| Abbot Richard de Ware |  |
| London Appointed Abbot of Westminster |
| Alliance Montfort, Simon de | |
| Edward I is installed as Governor & de Montfort becomes leader of the barons |
| Alliance Mortimer, Roger de | |
| Sides with the Barons against Henry III |
| Alliance Warenne, John de | |
| London Supports Henry III against the rebellious barons |
| Constitution Edward I | |
| Oxford Holds "parleys" with his Barons on the Baronial Council, the 1st Parliaments |
| Constitution Henry III | |
| 12th June Henry & the Barons must take an oath to observe the Provisions of Oxford |
| 12th June Oxford Parliament will be held 3 times a yr & the households of the king and queen reformed |
| 12th June Oxford Under the Provisions of Oxford Parliament will be held 3 times a yr & the households of the King and Queen reformed |
| Federation of Barons Bohun, Humphrey de | |
| Joins the Federation of Barons |
| Parliament Model Despenser, Hugh | |
| London Leader of the baronial side in the Model Parliament |
| Peace Henry III | |
| 23rd April London Returns to England, is reconciled with Edward & Simon de Montfort |
| Peace Llywelyn III |  |
| Signs a truce with Henry III |
| Peerage Bohun, Humphrey de | |
| Essex Created Earl of Essex |
| Provisions Oxford Edward I | |
| Oxford Affirms the King's right to appoint his own advisers |
| Oxford Increases the number of Barons on the Baronial Council in line with Simon de Montfort |
| Oxford Support the provisions which curbed Henry III's power |
| Provisions Oxford Henry III | |
| Oxford Reforms imposed on Henry III by the Oxford Parliament led by Simon de Montfort |
| 12th June Oxford Forced to give up power to a newly elected Council of Barons |
| 12th June Oxford Under the Provisions of Oxford Parliament will be held 3 times a yr & the households of the King and Queen reformed |
| Rebellion Clare | |
| Joins forces with Simon de Montfort |
| Rebellion Clare, Gilbert de | |
| Joins forces with Simon de Montfort |
| Rebellion Henry III | |
| 2nd May London Accepts the terms of reform |
| Rebellion Montfort, Simon de | |
| Gascony Helps Henry III suppres a rebellion in Gascony |
| 30th April London Demands Henry III free himself from the Pope's Sicilian campaign |
| 30th April London Demands Henry III reform his administration |
| Reform of Parliament Edward I | |
| Oxford Holds "parleys" with his Barons on the Baronial Council, the 1st Parliaments |
| Reform of Parliament Henry III | |
| 12th June Oxford Under the Provisions of Oxford Parliament will be held 3 times a yr & the households of the King and Queen reformed |
| Rule of France Henry III | |
| Military defeat led Henry to sell his hereditary claims to all the Angevin possessions |
| Taxation Henry III Henry III | |
| Henry levies extortionate taxes to pay for debts incurred through war with Wales |
