John Campbell, 2d Marquess of Breadalbane and 5th earl of Breadalbane and Holland (1796–1862)

Politician and courtier. MP for Okehampton, 1820–6, for Perthshire, 1832–4. Rector of Glasgow University, 1840–2. Lord chamberlain, 1848–52 and 1853–8. FRS 1819.