The death of Charles I was significant because there was no king for eleven years after him, which greatly affected his people, but not necessarily in a bad way. After his death, a parliament instead of a monarchy ( this is the big change that made his death significant). A parliament is made of many people, which was more beneficial than a monarchy, which was only made up of one man.
Answer: A parliament was made to keep the monarchy in check; the parliament holds the real authority
+ = <3