The English Civil War 's `` Royalists '' were also named `` Cavaliers '' .
The `` English Civil War `` , 1642 -- 1651 , was a series of armed conflicts and political machinations between `` Parliamentarians '' , `` Roundheads '' , and `` Royalists '' , `` Capillaries '' , over , principally , the manner of England 's government .
English Civil War