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| 0626 | Edwin |  |
| Northumbria Wages a war of revenge against the West Saxons |
| 0917 | Edward the Elder | |
| Passenham Raises forces at Passenham on Watling Street to declare war on the Danes |
| 0940 | Edmund I | |
| Wessex The Earl of Orm, Overlord of the Danelaw's "5 boroughs" declares for Olaf |
| 1065 | Tostig | |
| 3rd Oct Yorkshire A coalition of Yorkshire, Northumbria & Mercia against Tostig |
| 3rd Oct Yorkshire Morcar is declared the new Earl |
| 3rd Oct Yorkshire The standard of revolt is raised in Yorkshire |
| 1215 | John | |
| 12th May London Orders that the estates of the rebellious barons be seized, starting the civil war |
| 1224 | Henry III | |
| River Garonne A new Anglo-French War begins, France captures lands between the Loire & the Garonne |
| 1337 | Edward III | |
| Antwerp Edward III crosses to Antwerp & invades France beginning the Hundred Years war |
| Paris The Bishop of Lincoln challenges "Philippe, who calls himself King of France" |
| 1338 | Edward III | |
| 6th May Cancels the truce with France after the attack on Portsmouth & the Isle of Wight |
| 1455 | Richard | |
| Questions the Lancastrian claim to the throne & Henry's mental health |
| The Duke of York as heir to the Mortimer claim refuses to submit to Somers et |
| 1512 | Henry VIII | |
| 25th April Declares war on France |
| 1543 | Henry VIII | |
| 22nd June Declares war on France so that he can win the French throne |
| 1549 | Edward VI | |
| 9th Aug War is declared on France |
| 1557 | Mary I | |
| June Philip II leaves England never to return |
| June Philip II persuades his wife Mary I to declare war on France |
| 1558 | Mary I | |
| Declares war on France on the side of Spain with her husband Philip of Spain |
| 1595 | Elizabeth I | |
| Henry IV declares war on Spain |
| 1618 | James I | |
| His son-in-law succeeds as King of Bohemia leading to war with the Habsburg monarchy |
| 1624 | James I | |
| 10th Mar London Declares war on Spain after the Commons has granted funds |
| 1639 | Charles I | |
| Newburn Starts after Charles tries to enforce the English Book of Common Prayer on the Scots |
| 1642 | Charles I | |
| 27th May York Parliament declares the King is making war after Charles moves the Great Seal to York |
| 9th Aug Nottingham Accuses all those in Parliament of being traitors |
| 9th Aug Nottingham Declares war, "for suppressing the present rebellion" |
| 22nd Aug Nottingham Declares war on Parliament, raises the Royal Standard at Nottingham |
| 22nd Aug Nottingham Raises the standard of war at Nottingham Castle, anniversary of the battle of Bosworth |
| 6th Sep Nottingham The Royal Standard blows down & a more modern flag has to be put up in its place |
| 1656 | Cromwell, Oliver | |
| London Declares War against Spain |
| 1665 | Charles II | |
| Declares war on France |
| 1669 | Charles II | |
| Declares war against the Dutch for a subsidy from Louis XIV in the treaty of Dover |
| 1672 | Charles II | |
| 17th Mar Charles II declares war without consulting Parliament |
| 17th Mar England & France declare war against in accordance with the treaty of Dover |
| 1672 | Holmes, Robert | |
| 13th Mar Attacks the Dutch Smyrna convoy, but it escapes |
| 1689 | William III | |
| 7th May Declares war on France |
| 7th May Provoked by Louis XIV's expedition in support of James II in Ireland |
