James Stuart's arrived from France at Peterhead in Scotland to lead the uprising of 1715 on December 22,1715. Approximately 6 weeks later, on February 4, 1716, he was exiting from Montrose. The Old Pretender found life different in France when he returned, as Louis XIV had died while he was away. Stuart ended up in Rome, thanks to Pope Clement XI. Here he established his Roman Jacobite Court.
Scott refers to this court in Waverly:
"...Footnote: Where the Chevalier St. George, or, as he was termed,
the Old Pretender, held his exiled court, as his situation compelled him
to shift his place of residence..."