Louis IX (Saint Louis): Regency, Royal Justice and Crusades (1226–1270) · HIGH MIDDLE AGES
At the death of Louis VIII, royal power had to move faster than feudal ambitions. The watchword was controlled haste: crown the child, lock in obedience, and give a public face to Capetian continuity.
On 3 November, a few days before his death, Louis VIII summoned barons, prelates and key figures from the army. He made them promise that upon his death:
According to the chronicler Philippe Mouskes, the king also charged trusted companions (including Barthélemy de Roye, Jean de Nesle and brother Guérin) to watch over his children.
Louis IX was crowned on 29 November 1226 at Reims, by the bishop of Soissons Jacques de Bazoches. The speed was deliberate: to make the young Louis a “full” king before pressure could be exerted on him or his entourage.
Along the way, the young king was quickly knighted: a king of France had to be a knight.
Chroniclers noted the absence of many great personalities, both ecclesiastical and lay. Some have interpreted this as political gestures. But the most immediate explanation lay in logistics: a ceremony organised so quickly left little time for travel, and the coronation of a child did not necessarily attract the great lords.