1. King John (1199-1216)
Few monarchs have left a legacy as infamous as King John. His reign was marked by brutal taxation, failed military campaigns, and bitter disputes with his own nobles. Forced to sign the Magna Carta in 1215, John’s heavy-handed rule inspired rebellion and lasting resentment. Chronicles of the time depict him as both inept and ruthless, earning a reputation as one of England’s most reviled kings (via BBC History).
