The Road to Civil War: Charles I's Growing Problems
King Charles I believed in the Divine Right of Kings - basically, he thought God had chosen him to rule and he could do whatever he wanted. This attitude was always going to cause problems with Parliament, who believed they should have a say in running the country.
Things got worse when Charles married Henrietta Maria, a French Catholic, in 1625. Protestant England was immediately suspicious - what if their future king was raised Catholic? By 1629, Charles was so fed up with Parliament questioning him that he decided to rule without them for 11 years. Imagine trying to run a country without any input from elected representatives!
During this time, Charles made some seriously unpopular decisions. He introduced Ship Money - originally a tax on coastal areas during wartime to fund the navy. But Charles collected it from everyone, during peacetime, and didn't even use it properly for the navy. Then in 1637, he tried to force Scotland to use a new Prayer Book, which went down so badly that someone allegedly threw one at a priest!
Key Point: Charles's belief that he could ignore Parliament and do whatever he wanted set the stage for everything that followed.