text: Forces loyal to this ruler lost to the Covenanters in the Bishops' Wars.
full_question: Forces loyal to this ruler lost to the Covenanters in the Bishops' Wars. Before he came to power, this ruler was nearly married to the Infanta Maria Anna in the Spanish Match. In another conflict, forces loyal to this ruler were commanded by his nephew, Prince Rupert of the Rhine. After the death of his favorite, the Duke of Buckingham, this husband of Henrietta Maria ignored parliament during an eleven year "personal rule." As a result, this ruler was executed after his supporters, known as Cavaliers, were defeated by the New Model Army. For 10 points, name this second Stuart King who was overthrown by Oliver Cromwell in the English Civil War.
first_sentence: Forces loyal to this ruler lost to the Covenanters in the Bishops' Wars.
raw_answer: Charles I [prompt on just "Charles"]