King Edgar, also known as Edgar the Peaceful, was the King of England from 959 to 975 AD. He was the son of King Edmund I and became king at a young age. Edgar is known for his efforts to unify England and strengthen the monarchy, promoting peace and stability during his reign. Edgar was crowned in a ceremony that included the first use of the English coronation ceremony, which set a precedent for future monarchs. He is also remembered for his support of the church and the promotion of monastic reforms, which helped to enhance the spiritual life of the kingdom.