Since the end of the nineteenth century, historians have presented the military intervention of Philip Augustus against the Count of Auvergne, in 1210-1213, as a “conquest”. They interpret the events by referring to the Chronicles of Guillaume le Breton. After a period of “independence”, the Auvergne becomes French by the force of arms. This moment 1210-1213 can be re-examined by enlarging its chronology and examining archives. Therefore, the “conquest” appears more like the culmination of a progressive policy of penetration, already widely committed, as the result of an express will to get hold of a region to reattach it to the Royal domain.