War & Conflict

  • 685: Battle of Dun Nechtain checks Northumbrian power

    On 20 May 685, a Pictish force led by Bridei defeated a Northumbrian army led by King Ecgfrith at the Battle of Dun Nechtain, also known as Nechtansmere. Ecgfrith was killed in the fighting. That made the battle more than a failed expedition. Northumbria was one of the strongest kingdoms in northern Britain, and Ecgfrith’s…

  • 1216: Prince Louis lands in Kent to challenge King John

    On 21 May 1216, Prince Louis of France landed at Thanet in Kent with an army. He came into a kingdom already broken by civil war. Less than a year earlier, King John had agreed to Magna Carta at Runnymede. The agreement had not restored peace. John rejected the limits placed on him, the rebel…

  • 1217: Second Battle of Lincoln helps secure Henry III’s cause

    On 20 May 1217, royalist forces relieved Lincoln Castle and defeated a French-backed rebel army during the First Barons’ War. The battle came two years after Magna Carta, but England was still unsettled. King John had died in 1216, leaving his nine-year-old son, Henry III, as king. That changed the war. The quarrel over John’s…

  • 1337: Philip VI confiscates Guyenne from Edward III

    On 24 May 1337, Philip VI of France declared Edward III’s lands in Guyenne forfeit. The act was legal in form, but political in effect. Edward was king of England, yet he held land in south-west France as Duke of Aquitaine. For that land, he owed duties to the French king. The arrangement left him…

  • 1420: Treaty of Troyes makes Henry V heir to France

    On 21 May 1420, Henry V of England and Charles VI of France agreed on the Treaty of Troyes. The treaty made Henry regent of France and heir to the French throne. He was also to marry Charles’s daughter, Catherine of Valois. On paper, it was an extraordinary settlement. Henry had turned military success into…

  • 1431: Joan of Arc is executed at Rouen

    On 30 May 1431, Joan of Arc was executed at Rouen. Rouen was under English control at the time, and the execution took place during the later stages of the Hundred Years’ War. Joan had been captured the year before and put through a trial process that served English political interests as well as church…

  • 1455: First Battle of St Albans opens the Wars of the Roses

    On 22 May 1455, a Yorkist force defeated the royal army at St Albans. Henry VI was captured. Edmund Beaufort, Duke of Somerset, was killed. The battle was small beside later fighting in the Wars of the Roses, but its consequences were serious. It showed that the king’s government could no longer contain the rivalries…

  • 1706: Marlborough wins at Ramillies

    On 23 May 1706, the Duke of Marlborough led Allied forces to victory over the French at Ramillies during the War of the Spanish Succession. The war had begun over the Spanish inheritance, but it had become a wider struggle over power in Europe. England, the Dutch Republic and their allies sought to prevent Bourbon…

  • 1794: The Royal Navy wins the Glorious First of June

    On 1 June 1794, the Royal Navy fought the French fleet in the Atlantic at the battle later known in Britain as the Glorious First of June. Britain and Revolutionary France were at war. The fighting at sea was not only about ships and honour. It was also about supplies. France needed food, and a…

  • 1809: First prisoners arrive at Dartmoor Prison

    On 24 May 1809, around 2,500 French prisoners of war arrived at Dartmoor Prison. The prison had been built during the Napoleonic Wars, when Britain needed secure places to hold men captured in the long war with France. Dartmoor did not begin as the civilian prison it later became. Its first purpose was military: large-scale…