King Guardia XXI presides over the Kingdom of Guardia in the Middle Ages, and was apparently a popular leader who joined his men on the field of battle. Crowned prior to 590 A.D., and taking Queen Leene as his wife on that date, Guardia was probably alive to see the beginning of the Mystic War. His words of caution to Cyrus before his departure to battle the Frog King unfortunately came true. During the events of Chrono Trigger, he fought bravely against the Mystics, sustaining an injury that left him bedridden. Shortly after the injury was inflicted, he was informed that Tata had appeared as the hero. After he recuperated, he promised to store the Rainbow Shell in Guardia Castle's vault, and thanked the party in 1000 A.D. for helping to bring peace to the kingdom. Guardia was one of the most well-loved lords of his line; villagers as far away as Dorino expressed much grief when he was briefly injured.