by 1861 - 1863
Henry Petty-Fitzmaurice, 3rd marquess of Lansdowne, 1780 - 1863 (Lansdowne House, London, England), by inheritance to his heirs, 1863.
1863 - 1866
Henry Thomas Petty-Fitzmaurice, 4th Marquess of Lansdowne, British, 1816 - 1866, by inheritance to his heirs, 1866.
1866 - 1927
Henry Charles Petty-Fitzmaurice, 5th marquess of Lansdowne, 1845 - 1927, by inheritance to his heirs, 1927.
1927 - 1936
Henry William Edmund Petty-Fitzmaurice, 6th marquess of Lansdowne, British, 1872 - 1936 (Bowood House, Wiltshire, England) [offered for sale, The Celebrated Collection of Ancient Marbles: Property of the Most Honourable the Marquess of Lansdowne, Christie's, March 5, 1930, lot 100, bought back into the Lansdowne Collection and transferred to Bowood House, Wiltshire, England.], by inheritance to his heirs, 1936.
1936 - 1944
Charles Hope Petty-Fitzmaurice, 7th Marquess of Lansdowne, British, 1917 - 1944, by inheritance to his heirs, 1944.
1944 - 1972
George John Charles Mercer Nairne Petty-Fitzmaurice, 8th marquess of Lansdowne, 1912 - 1999 (Bowood House, Wiltshire, England) [sold, Egyptian, Western Asiatic, Greek, Etruscan and Roman Antiquities, Ancient Jewellery, Isnik and Islamic Pottery, Sotheby's, London, December 4, 1972, lot 128, to the J. Paul Getty Museum.]