Article deals with the struggle for the County of Flanders between England and France in the second half of the XIV century. It concerns with the changes in their tactic: England and France stopped the warfare for a short period of time and used the means of diplomacy to gain Flanders instead. Members of the Plantagenet (Edmund Langley) and the Valois (Philip the Bold duke of Burgundy) dynasties in their matrimonial policy tried to seek the hand of the heiress of Flanders – Marguerite of Males.
