For every 10 [[quality]] of the tower you will get '''one''' guard! Even if the [[quality]] is below 10 you will still get a single guard.
Theres a max of 5 Tower Guards pr tower, any increase in QL above 50 has no impact on numbers and strenght strength of guards.
You can equip tower guards with weapons, shields and other items. They will loose these on death. Anyone from the same kingdom can remove these items.