The present noble owner of princely Chatsworth, William Cavendish, seventh Duke of Devonshire, Marquis of Hartington, Earl of Devonshire, Earl of Burlington, Baron Cavendish of Hardwick, Baron Cavendish of Keighley, &c., Knight of the Garter, LL.D., F.R.S., Lord Lieutenant and Custos Rotulorum of the County of Derby, Chancellor of the University of Cambridge, High Steward of the Borough of Derby, &c., was born 27th April, 1808. His grace is the eldest son of William Cavendish, eldest son (by his wife the Lady Elizabeth Compton, daughter and heiress of Charles, seventh Earl of Northampton), of George Augustus Henry Cavendish (third son of the fourth Duke of Devonshire, by his wife the Lady Charlotte Boyle, as already stated), first Earl of Burlington, and Baron Cavendish, of Keighley, which titles were created in his favour in 1831: he died in 1834. William Cavendish, just referred to, was born in 1783, and in 1807 married the Hon. Louisa O’Callaghan, eldest daughter of Cornelius, first Baron Lismore, by whom he had issue three sons and one daughter, viz., the present Duke of Devonshire; Lord George Henry Cavendish, the present highly-respected M.P. for North Derbyshire, of Ashford Hall, in that county, married to Lady Louisa, youngest daughter of the second Earl of Harewood; Lady Fanny Cavendish, married to Frederick John Howard, Esq.; and Lord Richard Cavendish, all of whom are still living. Mr. Cavendish died in 1812, before his eldest child, the present Duke, was four years of age, his wife surviving him until 1864. His grace was educated at Eton, and at Trinity College, Cambridge, where he graduated as M.A., and was Second Wrangler, Senior Smith’s Prizeman, and in the first class of the Classical Tripos, 1829. In the same year he became M.P. for the University of Cambridge, which seat he held until 1831, when he was returned for Malton, and in the same year, as Lord Cavendish, for Derbyshire, and at the general election in the following year, for North Derbyshire, which constituency he represented until 1834, when he succeeded his grandfather as second Earl of Burlington. In 1856 he was, as Earl of Burlington, made Lord-Lieutenant of Lancashire, a post he held until 1858, when, on succeeding to the Dukedom of Devonshire, he was appointed Lord-Lieutenant of Derbyshire. From 1836 to 1858 he was Chancellor of the University of London, and, besides many other important appointments, is at the present time President of Owen’s College, Manchester. His grace, at that time Mr. Cavendish, married, 1829, his cousin, the Lady Blanche Georgiana Howard, fourth daughter of the sixth Earl of Carlisle, by his wife the Lady Georgiana Dorothy Cavendish, daughter of the fifth Duke of Devonshire. By this beautiful and accomplished, as well as truly estimable lady, who died in 1840, his grace had issue four sons and one daughter, who, with the exception of the eldest, are still living. These are—