Ever a fan of the theatrical, he whispered his famous last words - "Remember" - to the notoriously lazy Bishop of London, William Juxton.  
His religious policies caused the Covenanter Rebellion led by James Montrose, and he was forced to capitulate with the Treaty of Berwick.  Sir Thomas Stafford was his harshest critic, and though Stafford was acquitted of treason, he was executed anyway.  Bishop of Exeter John Gauden ghost-wrote a controversial autobiographical apology for this man's reign, entitled Eikon Basilike.  Ever a fan of the theatrical, he whispered his famous last words - "Remember" - to the notoriously lazy Bishop of London, William Juxton.  FTP, name this English monarch, who lost his head in 1649.
His religious policies caused the Covenanter Rebellion led by James Montrose, and he was forced to capitulate with the Treaty of Berwick.  
Charles I