He called himself "king of Great Britain" after gaining England's throne in 1603--he was already king of Scotland
The 
kingdoms of Scotland and England were individual sovereign states, ... After the 
Union of the Crowns, he based himself in England (the largest of... [DOC] [TLE] Free Flashcards about BRITISH ROYALTY - StudyStack [PAR] HE CALLED HIMSELF "KING OF GREAT BRITAIN" AFTER GAINING 
ENGLAND'S THRONE IN 1603...HE WAS ALREADY KING OF SCOTLAND, 
JAMES I.