Wasn't Britain's empire, like Hanover, territory held for the King's status?
Short answerNo. Hanover was George II's separate dynastic possession, while colonies and Company territories were tied to Britain through increasingly constitutional and commercial institutions.
NotesHanover differed from British imperial possessions because it was the King's separate dynastic territory and did not pay taxes to the British government. Company territory was even less a simple royal possession because commercial institutions administered it for trade. Colonies recognized the monarch as head of state, but Parliament and constitutional practice increasingly limited direct royal control. A British king attempting Louis XV's secret personal diplomacy would therefore have faced political removal or a rapid loss of authority.