For what it is worth, here is some real quick research.
It appears that Paine is referring to the fact that the German House of Hanover controlled the English Throne.
The Settlement Act of 1701 put Sophia of Hanover (who had never been to England) as the direct heir to the throne after Queen Ann. Sophia died before she could become queen and her son George eventually became king (George I). George III (the king at the time of the Revolution) was his grandson.
Thank you for that. I wouldn't have checked that on my own.
It gives provenance to Paine's words, which can only reinforce its original intent meaning.
-PJ