The family has its seat at
Floors Castle near
Kelso, Scotland. The grounds contain the ruins of
Roxburgh Castle on a promontory between the rivers Tweed and Teviot. The traditional burial place of the Dukes of Roxburghe is the
Roxburghe Memorial Cloister (also known as "Roxburghe Aisle"), a 20th-century addition to the ruins of
Kelso Abbey.
London residences John Ker, 1st Duke of Roxburghe maintained
Roxburghe House at No. 13
Hanover Square, Mayfair as his London residence. The house underwent extensive remodeling at the behest of his grandson
John Ker, 3rd Duke of Roxburghe, By the late nineteenth century the Dukes of Roxburghe did not maintain a permanent residence in London, instead taking short leases of various houses in
Mayfair for the London
Social season each year.
James Innes-Ker, 7th Duke of Roxburghe leased
Archibald Kennedy, 3rd Marquess of Ailsa's house in
Charles Street for two months during the London season in 1885, and in 1887 the Roxburghe’s took a short lease of
Thomas Taylour, 3rd Marquess of Headfort's house in Belgrave Square. During the 1889 season the Duke and Duchess of Roxburghe stayed with the Duchess’ mother
Frances, Dowager Duchess of Marlborough at her house at No. 50 Grosvenor Square for the season, and later leased No. 43
Cadogan Square in 1890. Following the death of the 7th Duke in 1892, his widow
Anne, Duchess of Roxburghe continued to lease a series of London townhouses for each season, including No. 27
Portman Square in 1893, No. 58 Grosvenor Street in 1894, No. 1 Chesterfield Gardens in 1895, No. 11 Hereford Gardens in 1897, and No. 9 Portman Square in 1898. In February 1899
Anne, Duchess of Roxburghe leased No. 45
Portman Square for the London season from
Consuelo Montagu, Duchess of Manchester, where her mother Frances, Dowager Duchess of Marlborough died in April. In April 1900 the Duchess of Roxburghe reportedly purchased No. 32
Grosvenor Square, which continued to be the family’s London home in 1901. The Duchess later leased No. 38 Grosvenor Street in 1903, which she continued to occupy until 1908. Anne became formally known as the
Dowager Duchess of Roxburghe following the marriage of her son
Henry John Innes-Ker, 8th Duke of Roxburghe to the American heiress
Mary Goelet in November 1903. In 1907 the 8th Duke and Duchess leased a large London mansion,
Stratford House at No. 11
Stratford Place from
Edward Colebrooke, 1st Baron Colebrooke, and later leased
Chesterfield House, Mayfair as their London residence from The Dowager Lady Burton (whose husband
Michael Bass, 1st Baron Burton had bequeathed her a life interest in the freehold of the property) in 1909. The Duke and Duchess of Roxburghe continued to lease Chesterfield House until 1919, although the bulding was loaned to the British Government during the First World War, and later to the Head of the American Special Mission to the United Kingdom,
Colonel House from November 1917 until 1919. In August 1921 the 8th Duke and Duchess acquired a new London home at No. 2
Carlton House Terrace from the executors of
Sir James Horlick, 1st Baronet. which became their London residence throughout the 1920s and early 1930s. Following the death of the Duke in 1932, his widow
Mary, Dowager Duchess of Roxburghe continued to occupy the house until her own death in 1937. Her son
George Innes-Ker, 9th Duke of Roxburghe married
Lady Mary Crewe-Milnes in October 1935, and the couple initially maintained their London residence at No. 55
Great Cumberland Place, until he inherited the lease of No. 2 Carlton House Terrace from his mother's estate; this remainded as the Roxburghe's London home until 1939. ==Earls of Roxburghe (1616)==