Spear was the most poular weapon in Britania due to its simple design and its low cost. But some individuals were wealthy enough to affort the queen of the weapons: the sword. Rherel went even beyond and they could affort helmets and chainmails.
Rherel were part of the nobles' personal guard, or even they were petty local nobles. Anyway their excellent equipment made them great hand to hand contenders.
All of them are carrying coptic tunics, but maybe it's hard to appreciate in the pictures. More freehands for the shields.