Question: When was Walter Montagu Douglas Scott, 8Th Duke Of Buccleuch's father born?

Knowledge 1: Walter Montagu Douglas Scott, 8th Duke of Buccleuch
Walter John Montagu Douglas Scott, 8th Duke of Buccleuch and 10th Duke of Queensberry, (30 December 1894 – 4 October 1973) was a Scottish peer and Conservative politician.He was the son of John Montagu Douglas Scott, 7th Duke of Buccleuch and Lady Margaret Alice "Molly" Bridgeman.His sister, Alice, married Prince Henry, Duke of Gloucester (one of the paternal uncles of Queen Elizabeth II) in 1935, becoming a member of the British Royal Family. [SEP] Knowledge 2: John Montagu Douglas Scott, 7th Duke of Buccleuch
John Charles Montagu Douglas Scott, 7th Duke of Buccleuch and 9th Duke of Queensberry, (30 March 1864 – 19 October 1935), styled The Honourable John Montagu Douglas Scott until 1884, Lord John Montagu Douglas Scott between 1884 and 1886 and Earl of Dalkeith until 1914 was a Scottish Member of Parliament and peer.
Knowledge 1: William Montagu Douglas Scott, 6th Duke of Buccleuch
William Henry Walter Montagu Douglas Scott, 6th Duke of Buccleuch and 8th Duke of Queensberry( 9 September 1831 – 5 November 1914) was a Scottish Member of Parliament and peer.He was the paternal grandfather of Princess Alice, Duchess of Gloucester, and the maternal great- grandfather of Prince William of Gloucester and Prince Richard, Duke of Gloucester.He was a paternal great- great- grandfather to Sarah, Duchess of York. [SEP] Knowledge 2: Louisa Montagu Douglas Scott, Duchess of Buccleuch
Louisa Jane Montagu Douglas Scott, Duchess of Buccleuch and Queensberry( 26 August 1836 – 16 March 1912) was the daughter of James Hamilton, 1st Duke of Abercorn.In 1884, she became the Duchess of Buccleuch and Duchess of Queensberry, the wife of William Henry Walter Montagu Douglas Scott, 6th Duke of Buccleuch& 8th Duke of Queensberry.She was the paternal grandmother of Princess Alice, Duchess of Gloucester and of Marian Louisa, Lady Elmhirst, as well as the maternal great- grandmother of Prince William of Gloucester, Prince Richard, Duke of Gloucester and great- great- grandmother of Sarah, Duchess of York.
Knowledge 1: Walter Montagu Douglas Scott, 8th Duke of Buccleuch
Walter John Montagu Douglas Scott, 8th Duke of Buccleuch and 10th Duke of Queensberry, (30 December 1894 – 4 October 1973) was a Scottish peer and Conservative politician.He was the son of John Montagu Douglas Scott, 7th Duke of Buccleuch and Lady Margaret Alice "Molly" Bridgeman.His sister, Alice, married Prince Henry, Duke of Gloucester (one of the paternal uncles of Queen Elizabeth II) in 1935, becoming a member of the British Royal Family. [SEP] Knowledge 2: William Montagu Douglas Scott, 6th Duke of Buccleuch
William Henry Walter Montagu Douglas Scott, 6th Duke of Buccleuch and 8th Duke of Queensberry( 9 September 1831 – 5 November 1914) was a Scottish Member of Parliament and peer.He was the paternal grandfather of Princess Alice, Duchess of Gloucester, and the maternal great- grandfather of Prince William of Gloucester and Prince Richard, Duke of Gloucester.He was a paternal great- great- grandfather to Sarah, Duchess of York.

Answer: 30 March 1864