The Constable of England is a historical title that refers to a high-ranking official responsible for maintaining law and order. This role dates back to the medieval period, where the constable oversaw the king's army and managed local law enforcement. The constable's duties included leading troops in battle and ensuring the safety of the realm. In modern times, the title has evolved, and the role is often associated with ceremonial functions. The Lord High Constable of England is a specific position that is primarily ceremonial and is involved in state occasions, such as the State Opening of Parliament.