Which treaty ended Edward IV's 1475 invasion of France?

The treaty that ended Edward IV’s 1475 invasion of France was the Treaty of Picquigny.

Negotiated on 29 August 1475, the agreement followed Edward’s landing in France with an English army. Edward had expected support from Charles the Bold of Burgundy and Francis II of Brittany, but the promised cooperation was limited. Louis XI of France therefore had an opportunity to negotiate rather than risk a major battle.

The treaty established a seven-year truce and required Edward to withdraw from the campaign. Louis paid him 75,000 crowns immediately and promised an annual pension of 50,000 crowns. The French king also agreed to ransom Margaret of Anjou, the former Lancastrian queen held by Edward.

The negotiations famously took place at Picquigny near Amiens, with the kings meeting on opposite sides of a specially constructed bridge. The settlement was criticized by some contemporaries as dishonourable, but it achieved Louis’s main aim: ending the invasion and removing the immediate English threat. It also formally marked the end of the Hundred Years’ War, although that conflict had effectively lapsed decades earlier.