Question: Who is the mother of Henry Hanbury-Tracy?

Knowledge 1: Henry Hanbury-Tracy
The Honourable Henry Hanbury-Tracy (11 April 1802 – 6 April 1889) was a British Whig politician.He sat in the House of Commons from 1837 to 1838.Hanbury-Tracy was born at Toddington, Gloucestershire, a younger son of Charles Hanbury-Tracy, 1st Baron Sudeley, by the Honourable Henrietta Susanna, only child and heiress of Henry Tracy, 8th Viscount Tracy.Thomas Hanbury-Tracy, 2nd Baron Sudeley, was his elder brother.He was elected at the 1837 general election as a Member of Parliament (MP) for Bridgnorth, but resigned from Parliament the following year by becoming Steward of the Chiltern HundredsHanbury-Tracy married Rosamond Ann Myrtle, daughter of Robert William Shirley, Viscount Tamworth, in 1841.On 2 September 1852, he was appointed a deputy lieutenant of Montgomeryshire by his brother, and was promoted by him to major of the Montgomeryshire Militia on 3 September.Hanbury-Tracy was appointed lieutenant-colonel commandant of that regiment on 1 May 1854, succeeding Sir John Conroy, 1st Baronet.However, he resigned his militia commission on 25 June 1855.He died in April 1889 at age 86. [SEP] Knowledge 2: Ada Sudeley
Ada Maria Katherine Hanbury-Tracy, Baroness Sudeley (née Tollemache; 21 June 1848 – 6 January 1928) was a British author.
Knowledge 1: Henry Hanbury-Tracy
The Honourable Henry Hanbury-Tracy (11 April 1802 – 6 April 1889) was a British Whig politician.He sat in the House of Commons from 1837 to 1838.Hanbury-Tracy was born at Toddington, Gloucestershire, a younger son of Charles Hanbury-Tracy, 1st Baron Sudeley, by the Honourable Henrietta Susanna, only child and heiress of Henry Tracy, 8th Viscount Tracy.Thomas Hanbury-Tracy, 2nd Baron Sudeley, was his elder brother.He was elected at the 1837 general election as a Member of Parliament (MP) for Bridgnorth, but resigned from Parliament the following year by becoming Steward of the Chiltern HundredsHanbury-Tracy married Rosamond Ann Myrtle, daughter of Robert William Shirley, Viscount Tamworth, in 1841.On 2 September 1852, he was appointed a deputy lieutenant of Montgomeryshire by his brother, and was promoted by him to major of the Montgomeryshire Militia on 3 September.Hanbury-Tracy was appointed lieutenant-colonel commandant of that regiment on 1 May 1854, succeeding Sir John Conroy, 1st Baronet.However, he resigned his militia commission on 25 June 1855.He died in April 1889 at age 86. [SEP] Knowledge 2: Thomas Hanbury-Tracy, 2nd Baron Sudeley
Thomas Charles Hanbury-Tracy, 2nd Baron Sudeley (5 February 1801 – 19 February 1863), known as Thomas Leigh between 1806 and 1838 and styled The Honourable Thomas Leigh between 1838 and 1839 and The Honourable Thomas Hanbury-Tracy between 1839 and 1858, was a British colliery owner and politician.Hanbury-Tracy was the son of Charles Hanbury-Tracy, 1st Baron Sudeley, and the Honourable Henrietta Susanna Tracy, daughter of Henry Tracy, 8th Viscount Tracy.The Hanbury family derived its wealth from its ownership of the Pontypool Ironworks.In 1806 he assumed by Royal licence the surname of Leigh in lieu of his patronymic.However, in 1839 he discontinued the use of this surname and resumed by Royal licence his original surname of Hanbury-Tracy.He was returned to Parliament for Wallingford in 1831, a seat he held until 1832.On 10 February 1852, his father appointed him a deputy lieutenant of Montgomeryshire.He succeeded his father in the barony in 1858 and also succeeded him as Lord Lieutenant of Montgomeryshire, which he remained until his death five years later.Lord Sudeley married Emma Elizabeth Alicia Pennant, daughter of George Hay Dawkins-Pennant, in 1831.Lord Sudeley died in February 1863, aged 62, and was succeeded in the barony by his son, Sudeley.Lady Sudeley died in July 1888.
Knowledge 1: Henry Hanbury-Tracy
The Honourable Henry Hanbury-Tracy (11 April 1802 – 6 April 1889) was a British Whig politician.He sat in the House of Commons from 1837 to 1838.Hanbury-Tracy was born at Toddington, Gloucestershire, a younger son of Charles Hanbury-Tracy, 1st Baron Sudeley, by the Honourable Henrietta Susanna, only child and heiress of Henry Tracy, 8th Viscount Tracy.Thomas Hanbury-Tracy, 2nd Baron Sudeley, was his elder brother.He was elected at the 1837 general election as a Member of Parliament (MP) for Bridgnorth, but resigned from Parliament the following year by becoming Steward of the Chiltern HundredsHanbury-Tracy married Rosamond Ann Myrtle, daughter of Robert William Shirley, Viscount Tamworth, in 1841.On 2 September 1852, he was appointed a deputy lieutenant of Montgomeryshire by his brother, and was promoted by him to major of the Montgomeryshire Militia on 3 September.Hanbury-Tracy was appointed lieutenant-colonel commandant of that regiment on 1 May 1854, succeeding Sir John Conroy, 1st Baronet.However, he resigned his militia commission on 25 June 1855.He died in April 1889 at age 86. [SEP] Knowledge 2: Charles Hanbury-Tracy, 1st Baron Sudeley
Charles Hanbury- Tracy, 1st Baron Sudeley( 28 December 1778 – 10 February 1858), known as Charles Hanbury until 1798 and as Charles Hanbury Tracy from 1798 to 1838, was a British Whig politician.

Answer: Henrietta Susanna Tracy