Title: John Knatchbull, 7th Baron Brabourne
Content:  Brabourne was born in 1924, the second son of Michael Knatchbull, 5th Baron Brabourne and his wife, Lady Doreen Knatchbull. He was educated at Eton College and Brasenose College, Oxford. He was barely 14 when his father died in February 1939 and his elder brother, Norton, inherited the Barony.
Title: John Knatchbull, 7th Baron Brabourne
Content:  John Ulick Knatchbull, 7th Baron Brabourne, (9 November 1924 – 23 September 2005), professionally known as John Brabourne, was a British peer, television producer and Oscar-nominated film producer. Married to a daughter of the 1st Earl Mountbatten, Brabourne was a survivor of the bombing which killed his father-in-law, mother and son.
Title: Nicholas Knatchbull
Content: 1) REDIRECT John Knatchbull, 7th Baron Brabourne 
Title: John Knatchbull, 7th Baron Brabourne
Content: Norton Philip Louis Knatchbull, Lord Romsey – later the 8th Baron Brabourne (born 8 October 1947), married Penelope Eastwood and has issue. 3rd Earl Mountbatten of Burma from 13 June 2017. ; The Hon. Michael-John Ulick Knatchbull (born 1950) ; The Hon. Anthony Knatchbull (born/died 6 April 1952) ; Lady Joanna Edwina Knatchbull (born 1955), married Baron Hubert Pernot du Breuil and later Azriel Zuckerman, and had issue by both. ; Lady Amanda Patricia Victoria Knatchbull – later Lady Amanda Ellingworth (born 26 June 1957), married Charles Ellingworth and had three sons. ; The Hon. Philip Wyndham Ashley Knatchbull (born 1961) ; The Hon. Nicholas Timothy 
Title: John Knatchbull, 7th Baron Brabourne
Content:  Knatchbull (18 November 1964 – 27 August 1979), killed at the age of 14 by an IRA bomb. ; The Hon. Timothy Knatchbull (born 18 November 1964), twin with his brother Nicholas At the end of the war, Brabourne returned to England and settled in the family seat, Mersham in Kent. On 26 October 1946, at Romsey Abbey in Hampshire, at the age of 21, he married Patricia Mountbatten, elder daughter of Louis Mountbatten, 1st Viscount Mountbatten, later 1st Earl Mountbatten of Burma. Brabourne's best man at the wedding was Squadron Leader Charles Harris-St. John. Lady Brabourne was to inherit her father's peerages in due course. 
Title: Michael Knatchbull, 5th Baron Brabourne
Content: Norton Cecil Michael Knatchbull, 6th Baron Brabourne (1922–1943) ; John Ulick Knatchbull, 7th Baron Brabourne (1924–2005). In 1946 he married The Hon. Patricia Mountbatten (later 2nd Countess Mountbatten of Burma) and had issue. On 22 January 1919, he married Lady Doreen Browne, youngest daughter of the 6th Marquess of Sligo, in St Peter's Church, Eaton Square. They had two children:  His widow, The Dowager Lady Brabourne, was murdered in the 1979 bombing by the Provisional Irish Republican Army of The 1st Earl Mountbatten of Burma's boat. One of their grandsons also died in the bombing.
Title: John Knatchbull, 7th Baron Brabourne
Content:  The Second World War broke out just as Brabourne was finishing school, and he enlisted in the armed forces. He served in the Coldstream Guards, rising to the rank of Captain. He fought in France from 1944 onwards. In 1943, his elder brother, Norton, a Lieutenant in the Grenadier Guards, was wounded and captured in Italy. While being transported to Germany as a POW, he tried escape, but was captured and executed by the SS on 15 September 1943. Since he died childless, his barony passed to his younger brother, John Knatchbull, who became the 7th Lord Brabourne.
Title: Doreen Knatchbull, Baroness Brabourne
Content: Hon. Norton Cecil Michael Knatchbull, later 6th Baron Brabourne (1922&ndash;1943) ; Hon. John Ulick Knatchbull, later 7th Baron Brabourne (1924&ndash;2005) She was the third daughter of The Most Hon. George Browne, 6th Marquess of Sligo, and his wife, Agatha (née Hodgson), granddaughter of William Forsyth, QC. On 22 January 1919, she married Hon. Michael Knatchbull, a son of Cecil, 4th Baron Brabourne, and his eventual successor. They had two children: On 15 February 1933, her husband succeeded his father as 5th Baron Brabourne and Doreen became The Lady Brabourne. Her husband, Lord Brabourne, served as Governor of Bombay from 1933 until 1937, and then as Governor of Bengal from 1937 until his death.
Title: Michael Knatchbull, 5th Baron Brabourne
Content:  Michael Herbert Rudolf Knatchbull, 5th Baron Brabourne, (8 May 1895 – 23 February 1939) was a British peer and soldier, the son of the 4th Baron Brabourne.
Title: Norton Knatchbull, 6th Baron Brabourne
Content:  Norton Cecil Michael Knatchbull, 6th Baron Brabourne (11 February 1922 – 15 September 1943), was a British peer and soldier, the son of His Excellency The 5th Baron Brabourne, Governor of Bengal.

Question: Who is the mother of John Knatchbull, 7th Baron Brabourne?
Answer: Doreen Knatchbull, Baroness Brabourne.