
Originally Posted by
Antagonist
It would depend on what point in "the period" is meant (proliferation appears to have increased over time) and also on the faction in question. In general I suspect 5% is a little low overall, though it is certainly not as common as some believe. For a "typical" faction (say the Norwegians or English) I would say (this is just my impression) it might be as low as 5% in 800 but would probably have climbed to maybe 15-20% by the end of the 11th century. By the time of Hastings and Stamford Bridge, for example, most reputable sources I've come across seem to accept that the vast majority of Harold's Housecarls wore mail armour, and they accounted for at least a tenth of his army.
Variation between factions would also probably be considerable, based on any number of factors - military culture, level of centralization/organization (e.g. to what extent soldiers are equipped by their masters rather than providing their own gear) and general level of industrial and economic development. I'd speculate (again, just my intuition based on what I've read) that the ratio would be somewhat higher among Frankish armies than among Saxons or Vikings (though never approaching 50, let alone 100 percent) and lower in the Celtic lands, maybe not rising above 5% in Wales or Ireland even by 1100.
Antagonist