Question: What is the date of birth of Millicent Leveson-Gower, Duchess Of Sutherland's husband?

Knowledge 1: Millicent Leveson-Gower, Duchess of Sutherland
Millicent Sutherland-Leveson-Gower, The Duchess of Sutherland (née Lady Millicent Fanny St. Clair-Erskine, 20 October 1867 – 20 August 1955) was a British society hostess, social reformer, author, editor, journalist, and playwright, often using the pen name "Erskine Gower".Her first husband was Cromartie Sutherland-Leveson-Gower, 4th Duke of Sutherland.By her two later marriages, she was known as Lady Millicent Fitzgerald and Lady Millicent Hawes, the latter of which was the name she used at the time of her death. [SEP] Knowledge 2: Cromartie Sutherland-Leveson-Gower, 4th Duke of Sutherland
Cromartie Sutherland-Leveson-Gower, 4th Duke of Sutherland, (20 July 1851– 27 June 1913), styled Lord Cromartie Sutherland-Leveson-Gower until 1858, Earl Gower between 1858 and 1861 and Marquess of Stafford between 1861 and 1892, was a British peer and politician from the Leveson-Gower family.
Knowledge 1: Millicent Leveson-Gower, Duchess of Sutherland
Millicent Sutherland-Leveson-Gower, The Duchess of Sutherland (née Lady Millicent Fanny St. Clair-Erskine, 20 October 1867 – 20 August 1955) was a British society hostess, social reformer, author, editor, journalist, and playwright, often using the pen name "Erskine Gower".Her first husband was Cromartie Sutherland-Leveson-Gower, 4th Duke of Sutherland.By her two later marriages, she was known as Lady Millicent Fitzgerald and Lady Millicent Hawes, the latter of which was the name she used at the time of her death. [SEP] Knowledge 2: Frederick Leveson Gower (cricketer)
Reverend Frederick Archibald Gresham Leveson-Gower (20 February 1871 – 3 October 1946) was an English cricketer from the Leveson-Gower family.He was a right-handed batsman who played as a wicketkeeper.He was the fifth son of Granville William Gresham Leveson-Gower.Leveson-Gower was educated at Winchester College, where he represented the college cricket team.Later he was educated at Magdalen College, Oxford.Leveson-Gower made his first-class debut for Oxford University in 1891 against Lancashire.Leveson-Gower next represented the University in 1894, during which season he played four matches for the University, with his final match coming against Essex.In 1894 Leveson-Gower played his only match for the Gentlemen of the South against the Players of the South.In 1895 Leveson-Gower played two first-class matches for the Gentlemen of England against Oxford University and Cambridge University.Leveson-Gower also made his debut for the Marylebone Cricket Club during the 1895 season against Oxford University.Leveson-Gower played four first-class matches for the club, with his final match for the club coming against Yorkshire in 1901.In his four matches for the club Leveson-Gower scored 126 runs at a batting average of 18.00, with a single half century score of 86 against Oxford University in 1896.In 1899 Leveson-Gower made his debut for Hampshire against Sussex.Leveson-Gower played one further match for the county, in 1900 against Lancashire.He was appointed vicar of Linton in 1901.In 1909 Leveson-Gower played for his brother's XI against Cambridge University and Oxford University.Leveson-Gower scored a single half century score of 58.Leveson-Gower died at Folkestone, Kent, on 3 October 1946.
Knowledge 1: Cromartie Sutherland-Leveson-Gower, 4th Duke of Sutherland
Cromartie Sutherland-Leveson-Gower, 4th Duke of Sutherland, (20 July 1851– 27 June 1913), styled Lord Cromartie Sutherland-Leveson-Gower until 1858, Earl Gower between 1858 and 1861 and Marquess of Stafford between 1861 and 1892, was a British peer and politician from the Leveson-Gower family. [SEP] Knowledge 2: Frederick Leveson Gower (cricketer)
Reverend Frederick Archibald Gresham Leveson-Gower (20 February 1871 – 3 October 1946) was an English cricketer from the Leveson-Gower family.He was a right-handed batsman who played as a wicketkeeper.He was the fifth son of Granville William Gresham Leveson-Gower.Leveson-Gower was educated at Winchester College, where he represented the college cricket team.Later he was educated at Magdalen College, Oxford.Leveson-Gower made his first-class debut for Oxford University in 1891 against Lancashire.Leveson-Gower next represented the University in 1894, during which season he played four matches for the University, with his final match coming against Essex.In 1894 Leveson-Gower played his only match for the Gentlemen of the South against the Players of the South.In 1895 Leveson-Gower played two first-class matches for the Gentlemen of England against Oxford University and Cambridge University.Leveson-Gower also made his debut for the Marylebone Cricket Club during the 1895 season against Oxford University.Leveson-Gower played four first-class matches for the club, with his final match for the club coming against Yorkshire in 1901.In his four matches for the club Leveson-Gower scored 126 runs at a batting average of 18.00, with a single half century score of 86 against Oxford University in 1896.In 1899 Leveson-Gower made his debut for Hampshire against Sussex.Leveson-Gower played one further match for the county, in 1900 against Lancashire.He was appointed vicar of Linton in 1901.In 1909 Leveson-Gower played for his brother's XI against Cambridge University and Oxford University.Leveson-Gower scored a single half century score of 58.Leveson-Gower died at Folkestone, Kent, on 3 October 1946.

Answer: 20 July 1851