On 3 July 1806, she married her first husband,
Sir William Abdy, 7th Baronet. Their marriage lasted nine years, but remained childless. Abdy had introduced her to his friend
Lord Charles Cavendish-Bentinck, a younger son of former
British Prime Minister William Cavendish-Bentinck, 3rd Duke of Portland. At some point during her first marriage, Anne and Lord Charles became lovers. They
eloped on 5 September 1815, following which Abdy brought a suit for
criminal conversation ("crim. con.", in
Regency parlance) for 30,000 pounds, but won only 7,000 pounds in damages. During the discussion of the divorce bill, the customary provision against remarriage was struck out in the House of Lords. Sir William Abdy was granted a divorce by royal consent to a special Act of Parliament on 25 June 1816. Anne and Lord Charles were married on 23 July 1816, enabling their first child (which she was expecting) to be born legitimate three weeks later. They had four children: • Anne Hyacinthe Cavendish-Bentinck (1 September 1816 – 7 June 1888) • Emily Cavendish-Bentinck (died 6 June 1850), who married the Rev. Henry Hopwood and had children. • The Reverend
Charles William Frederick Cavendish-Bentinck (8 November 1817 – 17 August 1865): • Father to
Cecilia Nina Cavendish-Bentinck, maternal grandfather to
Queen Elizabeth the Queen Mother and great-grandfather to
Queen Elizabeth II. • Lt.-Gen. Arthur Cavendish-Bentinck (10 May 1819 – 11 December 1877): • He married firstly Elizabeth Sophia Hawkins-Whitshed; they were parents of
William Cavendish-Bentinck, 6th Duke of Portland. • He married secondly Augusta Browne, 1st
Baroness Bolsover; they were parents of
Lady Ottoline Morrell. == Ancestors ==