Following the outbreak of the Wars of the Roses in 1455, England had not been in a position to pursue its claim to the French throne. Edward's position as King had been unstable during his first reign and he was temporarily removed in 1470 with Lancastrian Henry VI replacing him as King. However by 1471 his position on the throne was far more stable as Henry VI and his son Edward had died. With the domestic situation more secure, Edward IV was preparing to launch a military campaign against France, possibly in the hopes of regaining some of the territory which had been lost following the defeat in the Hundred Years War. However it is unclear how serious Edward's intentions were and preparations for the war faced resistance from the English parliament and a lack of support from allies Brittany and Burgundy.