This man came to the throne through the Treaty of Berwick, and the target of his Basilicon Doron did not live long enough to be able to use that writing's advice.  
A speech of John Hoskyns led this man to dissolve the Addled Parliament, as the speech made many allusions to the Sicilian Vespers.  This man came to the throne through the Treaty of Berwick, and the target of his Basilicon Doron did not live long enough to be able to use that writing's advice.  Henry Garnet ruined William Watson's plan to kidnap this man in the Bye Plot, and Sir Walter Raleigh may have been involved in the Main Plot against him.  For 10 points, name this man who was the subject of another plot designed by Roger Catesby and almost executed by Guy Fawkes, the Gunpowder Plot, who succeeded Elizabeth I to become the first Stuart king of England in 1603.
A speech of John Hoskyns led this man to dissolve the Addled Parliament, as the speech made many allusions to the Sicilian Vespers.  
{James} I of England (accept {James VI} of {Scotland}; prompt on {James VI})