Although Catholics were marginalized and strongly associated with Jacobitism under the early Hanoverians, the reign of George III saw a gradual assimilation of Catholics into mainstream political culture. The Vicars Apostolic of Great Britain played a key role in this process by emphasizing passivity and loyalty. The bishop who most strongly personified this Jacobite to loyalist transition was George Hay (1729-1811). A convert to Catholicism from the Scottish Episcopalian faith, Hay served the Jacobite Army as a medic in 1745 and was imprisoned following that conflict. After his conversion and subsequent ordination, Hay became coadjutor of the Lowland District of Scotland in 1769 and was promoted to the Apostolic Vicarate in 1778. Hay actively engaged with many high-profile statesmen and political thinkers, including Edmund Burke. Most notably, he constructively utilized Jacobite political theology to criticise revolutionary ideology. His public involvement in politics was most remarkable during the American and French Revolutions, when he confidently deployed the full force of counterrevolutionary doctrines that formerly alienated Catholics from the Hanoverian state. However, since the Age of Revolution presented a stark duality between monarchy and republicanism, Hay’s expressions of passive obedience and non-resistance endeared him and the Catholic Church to the British establishment.