Well you couldn't do wrong to ride with the old cliche about the two brothers with opposing viewpoints. One stands by the King while the other supports the forces of Parliament. To make it more 'interesting,' it would be the Older Brother who supports the 'rebels,' while the younger Son stands by the King - - - therefore the older brother 'profits' by the decision since King Charles the First 'lost' (and lost his head in the process)... BUT - - - -years later when Parliament decided that it could not handle the job of managing England and handed the task to King Charles the 2nd, it is the Older Brother forced to go off in disgrace and it is left to the younger brother to restore the family to favor.
These sort of things actually happend!!
Essentially the forces of 'freedom & liberty,' stepped back and said 'ooooppppss! Our bad." The Restoration of the Monarchy is heralded as 'progress.' Go figure.
You ought to hunt down an obscure but wonderful book, 'Beaufort; The Duke & His Duchess; 1657 to 1715,' by Molly McClain.' The Duke's father supported the Roundheads and it was up to the son to restore the family to favor when the Monarchy was restored.
Here is one of my favorite English Civil War Cites it will give you insight.
Please note all parties involved in the War were flawed, there was n******k & white or right & wrong - - - those were turbellent confusing times and no one emerges as a Saint not the Sainted Charles the One or the unfortunately maligned Oliver Cromwell (see Antonio Fraser's wonderfull bio)...
"""The origins of the Civil War are evident in the early reign of Charles I. Although Charles' period of personal rule appeared to be successful, conflict simmered below the surface, often focused on religion. William Laud, Archbishop of Canterbury, initiated a series of high church reforms which antagonised Puritans and led to a wave of religious persecution. Charles' French wife, Henrietta Maria, became a focus for Catholic sentiment at court and this reinforced the notion that Charles was a 'closet papist', while Charles' refusal to assist fellow Protestants in Europe during the Thirty Years War only strengthened this belief.
While English tensions simmered below the surface, the Scottish origins of the English Civil War are extremely important. Charles' attempt to impose an Anglican Prayer book on the Scottish Kirk in 1637 resulted in the fiasco of the First Bishops War and the calling of a Parliament in spring 1640, the first for eleven years. However, while Charles expected the Parliament to provide support and supply for a second Scottish expedition, MPs used this opportunity to express their dissatisfaction with royal policy. Charles dismissed the Parliament after only three weeks.
Charles experienced further setbacks during the Second Bishops War and called a second Parliament in November 1640. During this Parliament, the King's opponents aimed their fire on royal advisers Laud and Strafford, resulting in an escalation of crisis. Laud and Strafford were both jailed before the Christmas recess, and Strafford was executed in May 1641.
By mid-1641, the crisis seemed to have passed. Charles had caved in to several Parliamentary demands, and he was on his way north to make his peace with the Scots. However, just at this moment, Ireland exploded in rebellion and the three kingdoms were hurtling towards a fresh crisis.""
Peace.... /// ---------O . u . O ------------ \\\..........................c