Vere Essex Cromwell, 4th Earl of Ardglass
Vere Essex Cromwell, 4th Earl of Ardglass PC (I), (2 October 1625 – 26 November 1687) was an English nobleman, son of Thomas Cromwell, 1st Earl of Ardglass and Elizabeth Meverell.
Thomas Cromwell, 1st Earl of Ardglass
Thomas Cromwell, 1st Earl of Ardglass (11 June 1594 – 1653) was an English nobleman, son of Edward Cromwell, 3rd Baron Cromwell and second wife Frances Rugge.
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.
George Talbot, 4th Earl of Shrewsbury
Sir George Talbot, 4th Earl of Shrewsbury, 4th Earl of Waterford, 10th Baron Talbot, KG, KB, PC( c. 1468 – 26 July 1538) was the son of John Talbot, 3rd Earl of Shrewsbury, and Lady Catherine Stafford, daughter of the 1st Duke of Buckingham.
He also held the subsidiary titles of 13th Baron Strange of Blackmere and 9th Baron Furnivall.
Ralph Neville, 3rd Earl of Westmorland
Ralph Neville, 3rd Earl of Westmorland( c. 1456 – 6 February 1499) was an English peer.
He was the grandfather of Ralph Neville, 4th Earl of Westmorland.
Gilbert Talbot, 3rd Baron Talbot
Gilbert Talbot, 3rd Baron Talbot( c. 1332–1387) was an English nobleman and soldier.
He was the grandfather of John Talbot, 1st Earl of Shrewsbury.
Wingfield Cromwell, 2nd Earl of Ardglass
Wingfield Cromwell, 2nd Earl of Ardglass, DCL, (12 September 1624 – 3 October 1668) was an English nobleman, son of Thomas Cromwell, 1st Earl of Ardglass and Elizabeth Meverell.
He held the subsidiary titles of 2nd Viscount Lecale and 5th Baron Cromwell of Oakham.
Elizabeth Southwell
Elizabeth Southwell( née Cromwell), called Lady Cromwell( 1674 – 1709) was an English noblewoman, the only daughter of Vere Essex Cromwell, 4th Earl of Ardglass and wife Catherine Hamilton.
Thomas Cromwell, 3rd Earl of Ardglass
Thomas Cromwell, 3rd Earl of Ardglass (29 November 1653 – 11 April 1682), was an English nobleman, the only son of Wingfield Cromwell, 2nd Earl of Ardglass of Ilam, Staffordshire and Mary Russell.
He held the subsidiary titles of 3rd Viscount Lecale and 6th Baron Cromwell of Oakham.
John Manners, 4th Earl of Rutland
John Manners, 4th Earl of Rutland( c. 1559 – 24 February 1588) was the son of Henry Manners, 2nd Earl of Rutland, and Lady Margaret Neville, daughter of Ralph Neville, 4th Earl of Westmorland.

Question: Who is the paternal grandfather of Vere Essex Cromwell, 4Th Earl Of Ardglass?
Answer: Edward Cromwell, 3rd Baron Cromwell