The English Civil War saw many battles take place between 1642 and 1651. During the 17th century, many people disliked the power that the king or queen held. They believed that Parliament should have more say in how the country was run. Eventually, these disagreements became violent and the king and the parliament declared war on each other. This was a civil war, which means people within a country start fighting each other.
There were two sides, known as the Parliamentarians (nicknamed the Roundheads) and the Royalists (nicknamed the Cavaliers).