2.03. The Frankish Transition from Heavy Infantry to Cavalry
We are accordingly not surprised to find that from the sixth to the ninth century a steady increase in the proportion of cavalry in the Frank armies is to be found; corresponding to it is an increased employment of defensive arms. A crested helmet of classical shape becomes common among them, and shortly after a mail-shirt reaching to the hips is introduced. The Emperor Charles the Great himself contributed to the armament of his cavalry, by adopting defences for the arms and thighs: coxarum exteriora in eo ferreis ambiebantur bracteolis. This protection, however, was at first rejected by many of the Franks, who complained that it impaired their seat on horseback.
At Tours a considerable number of horsemen appear to have served in the army of Charles Martel: the general tactics of the day, however, were not those of an army mainly composed of cavalry. The Franks stood rooted to the spot, and fought a waiting battle, till the light-horse of the Saracens had exhausted their strength in countless unsuccessful charges: then they pushed forward and routed such of the enemy as had spirit to continue the fight.
In the time of Charles the Great we are told that all men of importance, with their immediate followers, were accustomed to serve on horseback. The national forces, however, as opposed to the personal retinues of the monarch and his great officials and nobles, continued to form the infantry of the army, as can be seen from the list of the weapons which the counts are directed to provide for them. The Capitularies are explicit in declaring that the local commanders “are to be careful that the men whom they have to lead to battle are fully equipped: that is, that they possess spear, shield, helm, mail-shirt (brunia), a bow, two bow-strings, and twelve arrows.”
The Franks had therefore become heavy infantry at the end of the eighth century: in the ninth century they were finally to abandon their old tactics, and to entrust all important operations to their cavalry. This transformation may be said to date from the law of Charles the Bald, providing “ut pagenses Franci qui caballos habent, aut habere possunt, cum suis comitibus in hostem pergant.” Whether merely ratifying an existing state of things, or instituting a new one, this order is eminently characteristic of the period, in which the defence of the country was falling into the hands of its cavalry force alone.
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