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| Battle of Taillebourg Henry III |  |
| 21st July Taillebourg Decisive engagement of this brief, but critical war |
| 21st July Taillebourg Henry III & his French baron allies retreat to the town of Saintes |
| Death of Newburgh, Margaret Newburgh, Margaret | |
| Death of Thomas de Newburgh |
| Invasion of France Henry III | |
| Henry's half brothers involve him in an expensively disastrous military venture |
| Henry III supports the Lords in the sth who have rebelled against Louis IX |
| 20th May Royen Henry III disembarks at Royen with "a small number of men" and '30 tons of gold |
| 20th May Royen The English king is joined by a host of French nobles including Hugh de Lusignan |
| Invasion of Gascony Montfort, Simon de | |
| London Reconciled with Henry III in his campaign to capture lost territories in France |
| Marriage of Newburgh, Margaret Newburgh, Margaret | |
| Warwick Margaret Newburgh marries John du Plessis who has the title & estates Earl of Warwick |
| Marriage of Plessis Plessis | |
| Warwick Margaret Newburgh marries John du Plessis who has the title & estates Earl of Warwick |
| Peerage Plessis | |
| Warwick Created Earl of Warwick, 7th |
| Siege of Poitou Henry III | |
| Poitou Attempts to capture Poitou but fails & loses Saintonge |
| Succession of Newburgh Newburgh | |
| Newburgh dies without an heir, the castle & estates pass to his sister Margaret |
| Succession of Newburgh Newburgh, Margaret | |
| Dies without an heir, the castle & estates pass to his sister Margaret |
