Countess Ekaterina Semyonovna Vorontsova (Woronzow, 1784-1856) was the daughter of Semyon Vorontsov, Russian ambassador in Britain, and the only sister of Prince Mikhail Vorontsov, Viceroy of New Russia and Caucasus (1782-1856). She was also a niece of Princess Dashkova, a friend of Catherine the Great and a conspirator in the coup d`etat that deposed Peter III. and put the Empress on the throne.
In 1808, she married George Herbert, 11th Earl of Pembroke as his second wife and became Countess of Pembroke, lady Pembroke, the hostess of Wilton House, Wiltshire. The Wilton Estate , Salisbury, Salisbury held an exhibition on her life titled Through Russian Eyes in August 2008.[1]
| Name | Birth | Death | Notes |
|---|---|---|---|
| Lady Elizabeth Herbert | 1809 | 1858 | married Richard Meade, 3rd Earl of Clanwilliam had issue |
| Hon. Sidney | 16 September 1810 | 2 August 1861 | Caroline Norton (affair) had no issue; married Mary Elizabeth Ashe à Court-Repington and had issue. He was made Baron Herbert of Lea in 1861. The current Earl of Pembroke descends from his second son who inherited the title in 1895. |
| Lady Mary Herbert | 1813 | 1892 | married George Brudenell-Bruce, 2nd Marquess of Ailesbury had no issue |
| Lady Catherine | 31 October 1814 | 12 February 1886 | married Alexander Murray, 6th Earl of Dunmore had issue |
| Lady Georgiana Herbert | 1817 | 1841 | married Henry Petty-Fitzmaurice, 4th Marquess of Lansdowne had no issue; she is Henry's 1st wife |
| Lady Emma | 1819 | 1884 | married Thomas Vesey, 3rd Viscount de Vesci had issue |