John Campbell, 9th Duke of Argyll

Engagement photo of Lorne and Princess Louise

John Campbell, 9th Duke of Argyll (1845–1914) was a Scottish nobleman who married a princess and became Governor-General of Canada. He had the honorary title of Marquess of Lorne from 1847 when his father succeeded as Duke of Argyll until 1900 when he became Duke himself.

He was educated at Edinburgh Academy, Eton, the University of St Andrews and Trinity College, Cambridge, as well as at the National Art Training School. He was Liberal MP for Argyllshire from 1868 to 1878

In 1871 he married Princess Louise, fourth daughter of Queen Victoria, a break with the tradition of the monarch's children marrying foreign royalty. The pair shared a common love of the arts, but tended to live apart and never had children. Further, he formed close friendships with men who were rumoured to be homosexually inclined, which raised questions about the marriage and fuelled rumours around London that he was bisexual, if not largely homosexual.

From 1878 to 1883 he was Governor-General of Canada.

He was MP for Manchester South from 1895 to 1900.