Carolingian heavy cavalry system

Timeline

1. 801–810Aachen court · Frankish EmpireAt the height of his empire, Charlemagne issued a series of military edicts specifying that nobles and the church must provide armored cavalry and weapons according to the size of their fiefs, and mandating annual spring musters and reviews. Cavalry became the core striking force of imperial border defense and of wars against the Saxons and Avars.
2. c. 810–840Rhineland and Lorraine · RhinelandIn the first half of the ninth century, stirrups, high saddles, and iron protective gear gradually spread through the Frankish army, enabling knights to use lances and swords for shock and melee from horseback. Blacksmiths and monastic workshops supplied cavalry with armor and weapons, forming a heavy cavalry equipment supply chain.
3. 843–870West Frankish Kingdom · West Frankish KingdomAfter the Treaty of Verdun in 843, the Carolingian sons' kingdoms each maintained cavalry service institutions. West Frankish noble cavalry patrolled along the Seine and Loire rivers against Viking longship raids; East Frankish cavalry faced Slavic and Magyar threats east of the Elbe.
4. c. 870–900East Frankish Kingdom · East Frankish KingdomBy the end of the ninth century, the fief-service relationship was further solidified: each knight's fief had to support one armored cavalryman serving forty days. This institution provided the manpower basis for the Ottonian cavalry's counterattack against the Magyars in the tenth century, marking the Carolingian heavy cavalry system's transition to the medieval feudal knight system.