House of Lancaster: around 5,000 men-at-arms; House of York: approximately 10,000
The Battle of Northampton was fought on 10 July 1460 near the River Nene, Northamptonshire. It was a major battle of the Wars of the Roses. The opposing forces were an army led by nobles loyal to King Henry VI of the House of Lancaster, his Queen Margaret of Anjou and their six-year-old son Edward, Prince of Wales, on one side, and the army of Edward, Earl of March, and Warwick the Kingmaker on the other. The battle was the first in which artillery was used in England.
After the disintegration of the Yorkist army at Ludford Bridge in 1459, many of the Yorkist commanders went into self-imposed exile. The Duke of York and his second son Edmund, Earl of Rutland, retired to the relative safety of Dublin, Ireland. His principal supporters the Earl of Warwick and his father the Earl of Salisbury, and York's son Edward, Earl of March, reached Calais on 2 November 1459, where Warwick found his uncle Lord Fauconberg. In England, the Lancastrians were quick to exploit the Yorkist flight. The Earl of Wiltshire was appointed Lieutenant of Ireland and the Duke of Somerset became Captain of Calais. Neither however succeeded in occupying their new posts as the Irish refused to dislodge York and the gates of Calais remained firmly closed to their new 'Captain'.
The Lancastrians gave Somerset an army to storm Calais, but first they had to cross the Channel, so the construction of a fleet was started at Sandwich in Kent. In January and May 1460, Warwick made raids on Sandwich and stole the ships. In June, the Lancastrian invasion was pre-empted by an attack on Sandwich, which had been reinforced with several hundred Lancastrian troops commanded by Osbert Mundford. The Yorkist force under Lord Fauconberg, Sir John Wenlock and John Dynham seized the port, capturing troops and armaments. Mundford was captured, taken to Rysbank tower and executed. Warwick left his uncle, Lord Fauconberg, in Sandwich with a small force of Yorkists to act as a bridgehead for his planned invasion of England.
On 26 June, Warwick, Salisbury and Edward landed at Sandwich with 2,000 men-at-arms. King Henry VI and his Queen, Margaret of Anjou, were at Coventry with their small army. Warwick entered London on 2 July with an army of supporters numbering approximately 10,000.
The king's forces took up a defensive position at Northampton, in the grounds of Delapré Abbey. They had constructed an artillery fortification in what is now a mixture of public park and golf course. The position was surrounded by natural watercourses, tributaries of the River Nene, backed by a palisade and gun positions. The defending army was around 5,000 strong, consisting mainly of men-at-arms. The Lancastrians also had some field artillery.
The site of Battle of Northampton (1460) lies on Lias Group, bedrock that formed in the Aalenian. The rock here is mudstone, siltstone, limestone and sandstone.
This battlefield is listed on the Register of Historic Battlefields — a national designation identifying Britain's most significant battle sites for protection and further research. Reference: NHLE 1000028.
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