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Charles I of England - Wikipedia
Charles I | Accomplishments, Execution, Successor, & Facts
Charles I of England - World History Encyclopedia
Execution of Charles I - Wikipedia
Charles I - Accomplishments, Religion & Facts - Biography
Why was King Charles I executed? | Royal Museums Greenwich
Charles I (r. 1625-1649) - The Royal Family
BBC - History - King Charles I
Charles I summary | Britannica - Encyclopedia Britannica
United Kingdom - Charles I, Civil War, Restoration | Britannica