Question: Scipio Kennedy was a slave under the 2nd Baronet Kennedy of a castle overlooking the Firth of Clyde now owned by who?

Context paragraphs:
Culzean Castle: Culzean Castle ( , see yogh; Scots: "Cullain" ) is a castle overlooking the Firth of Clyde, near Maybole, Carrick, on the Ayrshire coast of Scotland.  It is the former home of the Marquess of Ailsa, the chief of Clan Kennedy, but is now owned by the National Trust for Scotland.  The clifftop castle lies within the Culzean Castle Country Park and is opened to the public.

Dick baronets: The Dick baronetcy in Prestonfield, Edinburgh was created in the Baronetage of Nova Scotia for James Dick.  Initially created in 1677, it was renewed in 1707 and merged with the Cunningham of Lambrughton, Ayrshire baronetcy in 1829.  The family seat was Prestonfield House, Edinburgh.  Sir William Dick, 2nd Baronet and Sir Alexander Dick, 3rd Baronet were the younger sons of Sir William Cunningham, 2nd Baronet (of Lambrughton) and his wife Janet Dick, the daughter and heiress of Sir James Dick, 1st Baronet.  Both brothers changed their surname to Dick on inheriting Prestonfield in turn.

Scipio Kennedy: Scipio Kennedy (c. 1694–1774) was a slave taken as a child from Guinea in West Africa.  After being purchased at the age of five or six by Captain Andrew Douglas of Mains, he served as a slave under his daughter, Lady Jean, wife of Sir John, the 2nd Baronet Kennedy of Culzean in Ayrshire.  He was granted a manumission (freedom from slavery) in 1725, but continued to work for the Kennedy family and was given land on the estate.  He married in 1728 and had at least eight children.  At least one living descendant is known from the West of Scotland and has published the story of his ancestor in a Scottish national newspaper.

Alexander Maxwell: Sir Alexander Maxwell, 2nd Baronet (died 23 May 1730) was a Scottish Member of Parliament (MP) in the British Parliament.  He became the 2nd Baronet of Monreith in the shire of Wigtown in April 1709.

Viscount Dilhorne: Viscount Dilhorne, of Greens Norton in the County of Northampton, is a title in the Peerage of the United Kingdom.  It was created in 1964 for the lawyer, Conservative politician and former Lord Chancellor, Reginald Manningham-Buller, 1st Baron Dilhorne.  He had already succeeded his father as fourth Baronet of Dilhorne and been created Baron Dilhorne, of Towcester in the County of Northampton, in 1962, also in the Peerage of the United Kingdom.  The Baronetcy, of Dilhorne in the County of Stafford, was created in the Baronetage of the United Kingdom on 20 January 1866 for the first Viscount's great-grandfather Edward Manningham-Buller.  He represented Staffordshire North and Stafford in Parliament.  Manningham-Buller was the third son of Sir Francis Buller, 2nd Baronet, of Churston Court, whose eldest son, the third Baronet, was created Baron Churston in 1858.  His grandson, the third Baronet, sat as a Conservative Member of Parliament for Kettering and Northampton.  He was succeeded by his eldest son, the aforementioned fourth Baronet, who was elevated to the peerage as Viscount Dilhorne.  s of 2017 the titles are held by the latter's son, the second Viscount, who succeeded in 1980.  As a descendant of Sir Francis Buller, 2nd Baronet, of Churston Court, he is also in remainder to the baronetcy of Churston Court, a title held by his kinsman the Baron Churston.

Roland Wilson (barrister): Sir Roland Knyvet Wilson, 2nd Baronet (27 August, 1840 - 29 October, 1919) was an English academic and political writer.  The son of Rear-Admiral George Knyvet Wilson, R.N., Roland's uncle was Sir Archdale Wilson, commander of British forces at the Siege of Delhi, whom he succeeded as 2nd Baronet in 1874.

Sir John Gordon, 2nd Baronet, of Haddo: Sir John Gordon, 2nd Baronet (c. 1632–1665) was the eldest son of Sir John Gordon, 1st Baronet, of Haddo and Mary Forbes.  He succeeded to the title of 2nd Baronet on the execution of his father for treason on 19 July 1644, but due to his father's attainder, was under forfeiture until the Restoration in 1660.  On his death in 1665 without male issue the baronetcy devolved upon his younger brother, who was later created 1st Earl of Aberdeen.

Sir Rupert Clarke, 2nd Baronet: Sir Rupert Turner Havelock Clark, 2nd Baronet (1865–1926), 2nd Baronet of Rupertswood, pastoralist and entrepreneur, member of parliament and company director.  He was the son of Sir William John Clarke.  Sir William was made a baronet by Queen Victoria for the huge sums he had given to various causes.

Baron Waterpark: Baron Waterpark is a title in the Peerage of Ireland.  It was created in 1792 for Sarah, Lady Cavendish, in honour of her husband, Sir Henry Cavendish, 2nd Baronet.  Sir Henry Cavendish was a politician who represented Lismore and Killybegs in the Irish House of Commons and served as Vice-Treasurer of Ireland and as Receiver-General of Ireland.  From 1768 to 1774 he sat in the British House of Commons for Lostwithiel.  Cavendish and Lady Waterpark were both succeeded by their son Richard, the second Baron and third Baronet.  His eldest son, the third Baron, represented Knaresborough, Derbyshire South and Lichfield in the House of Commons as a Liberal and served as a Lord-in-Waiting (government whip) under Lord John Russell, Lord Aberdeen and Lord Palmerston.  This line of the family failed on the death of his grandson, the fifth Baron, in 1932.  The late Baron was succeeded by his second cousin, the sixth Baron.  He was the grandson of a younger son of the second Baron.  s of 2013 the titles are held by the latter's great-nephew, the eighth Baron, who succeeded in 2013.  The Cavendish Baronetcy, of Doveridge Hall, was created in the Baronetage of Great Britain in 1755 for Henry Cavendish.  He notably represented Lismore in the Irish House of Commons.  He was succeeded by his son, the aforementioned Sir Henry Cavendish, 2nd Baronet.

Sir Arthur Northcote, 2nd Baronet: Sir Arthur Northcote, 2nd Baronet (1628–1688) was a baronet from Devon, England.  He resided at Hayne in the parish of Newton St Cyres, Devon, which mansion house has since been demolished, and also at King's Nympton, Devon, which manor he purchased from Sir Hugh Pollard, 2nd Baronet, his father's first cousin, and where he was buried.

Supporting paragraphs: Scipio Kennedy Culzean Castle
Answer: National Trust for Scotland