Routiers
The Hundred Years' War, which lasted from 1337 to 1453, was the backdrop to their pillaging. The Hundred Years' War was fought between two royal families over control of the French throne: the Plantagenets from England, and the House of Valois from France. The War, which is divided into three stages - the Edwardian War (1337-1360), the Caroline War (1369-1389), and the Lancastrian War (1415-1429) - saw the development of new tactics and weaponry that revolutionised warfare during that time period.
Capetian–Plantagenet rivalry
Ironically, Edward III, the son of Isabella and Edward II of England would use his position as grandson of Philip the Fair to claim the Kingdom of France. Therefore, the marriage settlement that sealed the end of the "first" Hundred Years' War would lead to the casus belli employed to declare the "second" Hundred Years' War. The War of Saint-Sardos, the first major conflict between the two major kingdoms in half a century, would act as foreshadowing for the bigger war to come.