What did knight do when they were not at war?

Answer 1

When knights were not at war, they usually had their estates to manage, and lived normal lives doing that. Some knights did not have estates and hired themselves out do to any job they could get, which often meant taking some sort of job in a garrison or in government. There was always a problem after wars with what to do about displaced knights who had lost estates, because if they could not find anything else to do, they often banded together to be highway robbers.