Sir John Lowther, 2nd Baronet, of Whitehaven
Sir John Lowther, 2nd Baronet FRS (9 November 1642 – 17 January 1706) was an English gentleman and landowner at Whitehaven.
Lowther was born at Whitehaven, in the parish of St Bees, Cumberland, the son of Sir Christopher Lowther, 1st Baronet, and his wife, Frances Lancaster, daughter of Christopher Lancaster of Stockbridge, Westmoreland.
He was educated at Ilkley, Yorkshire and Balliol College, Oxford (matriculated 1657).
He served as Member of Parliament for Cumberland from 1665 to 1701, and as a Lord Commissioner of the Admiralty from 1689 to 1696.
Sir Christopher Lowther, 3rd Baronet
Sir Christopher Lowther, 3rd Baronet (1666 – 2 October 1731) was an English baronet, the eldest son of Sir John Lowther, 2nd Baronet and Jane Leigh (died 1678).
His alcoholism and irresponsibility caused his father to disinherit him in 1701, leaving his brother James to become master of the Lowther estates at Whitehaven.
Thomas Gladstones
Thomas Gladstones( 3 June 1732 – 12 May 1809) was a Scottish merchant and philanthropist.
He was the father of Sir John Gladstone and the grandfather of the British prime minister William Ewart Gladstone.
Christopher Peto
Sir Christopher Henry Maxwell Peto, 3rd Baronet, DSO( 19 February 1897 – 19 May 1980) was a Brigadier in the British Army during World War II and a post-war British Conservative Party politician.
Henry Lowther, 3rd Earl of Lonsdale
Henry Lowther, 3rd Earl of Lonsdale (27 March 1818 – 15 August 1876) was a British nobleman and Conservative politician.
Kaya Alp
Kaya Alp was, according to Ottoman tradition, the son of Kızıl Buğa and the father of Suleyman Shah, who was, in turn, the grandfather of Ertuğrul, and the great grandfather of the Ottoman Empire founder, Osman I.
Henry Lowther, 3rd Viscount Lonsdale
Henry Lowther, 3rd Viscount Lonsdale,( 16947 March 1751) was an English courtier and landowner.
Henry Krause
Henry J." Red" Krause, Jr.( August 28, 1913 – February 20, 1987) was an American football offensive lineman in the National Football League for the Brooklyn Dodgers and the Washington Redskins.
He played college football at St. Louis University.
He is the grandfather of Jennifer Krause
He is the great grandfather of Payton Hoeing
Christopher Wyvill (priest)
The seventh son of Sir Christopher Wyvill, 3rd Baronet, M.P. for Richmond, he was educated at Trinity College, Cambridge.
He was ordained in 1678.
He was a Canon of York from 1700 until his death in January 1710.
Sir Humphrey de Trafford, 4th Baronet
Sir Humphrey Edmund de Trafford, 4th Baronet( 30 November 1891 – 6 October 1971) was a prominent English racehorse owner, and the grandfather of Brigadier Andrew Parker Bowles.
He was the son of Sir Humphrey de Trafford, 3rd Baronet, and Violet Alice Maud Franklin.

Question: Who is the paternal grandfather of Sir Christopher Lowther, 3Rd Baronet?
Answer: Sir Christopher Lowther, 1st Baronet