Vengeance during the Middle Ages was part of the feuding process and often carried out in proportion to the initial wrong.
This wasn't always the case, especially when matters involved politics and kinship. Medieval rulers may have acted with brutality to demonstrate their power or avenge a personal affront, often paying back people who did them wrong with ferocity and ire. Mercy, grace, and kindness were also part of the medieval world and, of course, a middle ground existed.
We found some acts of revenge from the Middle Ages that represent a range of reactions. Take a look and vote up the most ruthless ones.