Alexander Duff (1849–1912) was the eldest son of The 5th Earl Fife (1814–1879). Upon his father's death on 7 August 1879, he succeeded as The 6th Earl Fife. With this, he inherited the titles Baron Braco (created in 1735), Earl Fife and Viscount Macduff (both created in 1759), all in the Peerage of Ireland (and created for Scottish nobleman William Duff, 1696–1763), and Baron Skene in the Peerage of the United Kingdom (created in 1857 for his father The 5th Earl Fife; a title which gave him a seat in the House of Lords). In 1885, Queen Victoria created for Alexander Duff the title Earl of Fife in the Peerage of the United Kingdom.