Who was Charles I supported by?

Charles I was primarily supported by royalists, also known as Cavaliers, who were loyal to the monarchy and opposed the Parliamentarians during the English Civil War. He had the backing of the nobility, some members of the clergy, and a segment of the general populace who favored his rule. Additionally, he received support from certain regions in England and Scotland, though this varied over time. Ultimately, his support waned as the conflict progressed, leading to his defeat and execution.