John III of England is a historical figure who is often confused with King John, the notorious monarch who ruled from 1199 to 1216. John III is not a widely recognized king and is sometimes referred to in discussions about the English monarchy's lineage. His reign is not well-documented, and he is not considered a significant figure in English history. The title of John III is sometimes associated with claims made by various pretenders to the English throne, particularly during periods of political instability. However, there is no official record of a king named John III ruling England, making him more of a footnote in the broader narrative of the British monarchy.