Cavalier

Cavalier was the name used by Parliamentarians for a Royalist supporter of King Charles I and son Charles II during the English Civil War, the Interregnum, and the Restoration (1642 – c. 1679). Prince Rupert, commander of much of Charles I's cavalry, is often considered an archetypical Cavalier.

Read more about Cavalier:  Early Usage, English Civil War, Cavaliers in The Arts