This article uses the deluge of pamphlets, public addresses, newspaper articles and sermons addressing the Queen Caroline Affair to construct a case study of the opposing constructions of British masculinity vying for dominance in 1820. The literature surrounding the attempted royal divorce reveals a contest between the libertine example of manhood characterised by George IV and the more sober, chivalrous and respectable image of masculinity increasingly espoused as the British ideal. This episode, therefore, offers an unusually rich insight into contemporary constructions of masculinity and the way in which they were utilised within the public sphere. Moreover, this article argues that such gendered concerns were not only as crucial to motivating opposition to the king's actions as political issues, but that gender concerns and political issues were indivisible, as appropriate manly behaviour in both public and private increasingly came to be seen as a core component of a man's overall reputation and fitness to exercise authority.