Bishop Francis Atterbury
Flimnap's accusations against Gulliver represent Whig accusations against Bishop Francis Atterbury (1662 - 1732), a close friend of Swift. Atterbury was a prominent Tory and High Churchman, a great orator who held considerable power under Queen Anne's rule and who openly favored the succession of her half-brother James III rather than George of Hanover.
As soon as George I came to power, Atterbury fell from favor. In 1723, he was arrested for complicity in a Jacobite plot to replace George I with the Pretender James. He was convicted and forced into exile.