Charles I Ascends Thrones of England Scotland Ireland
James VI and I died on March 27, 1625, after a reign that united the crowns of England, Scotland, and Ireland. His son Charles, already deeply involved in governance alongside the Duke of Buckingham, immediately succeeded as king. The new monarch inherited ongoing tensions between royal authority and Parliament, as well as foreign policy challenges including the ongoing Thirty Years' War. Charles quickly arranged his marriage to Henrietta Maria of France to strengthen alliances. His accession began a reign marked by struggles over taxation, religion, and parliamentary rights that would culminate in civil war.
Why it matters: Charles's belief in divine right clashed with emerging parliamentary power, setting the stage for the English Civil War, his execution in 1649, and the temporary establishment of a republic.