Here's a link to B.C. Southam's "An Easy Step to Silence: Jane Austen and the Political Context, a 1998 article on JA's political affiliations, noting that her family were staunch Tories, both politically and culturally (the Loiterer), who used Tory channels of naval patronage through their connection with Warren Hastings. Her mother's family had been pro-Stuart, if not outright Jacobites. Her cousin Eliza Hancock lost her husband, the Comte de Feuillade, to the guillotine. Altogether a pretty conservative millieu.

Austen herself criticized the Ministry of All the Talents for its abortive attempts to negotiate peace with Napoleon in 1806-07. According to one of her nieces, she carried her adolescent admiration for the Stuarts in general and Charles I in particular into her later life.