William Kerr, 6th Marquess of Lothian
William Kerr, 6th Marquess of Lothian, was the son of William Kerr, 5th Marquess of Lothian. He was a soldier, landowner and representative peer 1817–1824.
When he was five he was the subject of several pictures with his sister, executed by Valentine Green as mezzotints for publication.
He was educated at the University of Edinburgh. In 1786 he was elected a Fellow of the Royal Society of Edinburgh. His proposers were Dugald Stewart, James Hutton and John Robison.
He was Lord Lieutenant of Roxburghshire from 1812 and of Midlothian from 1819. He served as a Colonel in the Edinburgh Militia.
He was created a Knight of the Thistle in 1820 and Baron of Kersheugh in 1821.
He lived in the family home of Monteviot House near Jedburgh.
He died in Richmond, Surrey on 27 April 1824.Family
He married, firstly, Lady Harriet Hobart, a younger daughter of John Hobart, 2nd Earl of Buckinghamshire, on 14 April 1793. They had four children:
- John Kerr, 7th Marquess of Lothian
- Lord Schomberg Robert, soldier, died unmarried.
- Lady Isabella Emily Caroline, died unmarried.
- Lord Henry Francis Charles, religious minister, married Louisa Hope, a daughter of Sir Alexander Hope.
His first wife died in 1805 and on 1 December 1806, at Dalkeith House, he married Lady Harriet Scott, a younger daughter of Henry Scott, 3rd Duke of Buccleuch. They had eight children:
- Lady Elizabeth Georgiana Kerr, married Charles Trefusis, 19th Baron Clinton.
- Lady Harriet Louise Anne, married Sir John Stuart Hepburn Forbes, 8th Baronet.
- Lady Frances, married George Wade.
- Lady Anne Katherine, died unmarried.
- Lord Charles Lennox, soldier, married Charlotte Hanmer, a daughter of Sir Thomas Hanmer, 2nd Baronet.
- Lord Mark Ralph George, soldier, died unmarried.
- Lord Frederick Herbert, admiral, married Emily Maitland, a daughter of Sir Peregrine Maitland.
- Lady Georgiana Augusta, married Rev. Granville Forbes.
