Question: Who is John Wodehouse, 1St Baron Wodehouse's paternal grandmother?

Knowledge 1: John Wodehouse, 1st Baron Wodehouse
John Wodehouse, 1st Baron Wodehouse (4 April 1741 – 29 May 1834), known as Sir John Wodehouse, 6th Baronet, from 1777 to 1797, was a British landowner, Member of Parliament and peer.Wodehouse was the son of Sir Armine Wodehouse, 5th Baronet, and Letitia Bacon.He succeeded his father in the baronetcy in 1777 and in 1784 he was elected to the House of Commons for Norfolk, a seat he held until 1797.In that year, he was raised to the peerage as Baron Wodehouse, of Kimberley in the County of Norfolk.In 1778, Wodehouse commissioned Capability Brown, to undertake a series of enhancements to his country seat, Kimberley Hall near Wymondham(Brown had previously undertaken works for Sir Armine in 1762).By 1827, Woodhouse had developed a pleasure ground, a southwards extension to the park and three lodged entrances.The landscape which Wodehouse created has largely survived and is listed Grade II*.
Lord Wodehouse married Sophia Berkeley, daughter of the Hon.Charles Berkeley, in 1769.He died in May 1834 aged 93, and was succeeded in his titles by his eldest son John. [SEP] Knowledge 2: Sir Armine Wodehouse, 5th Baronet
Sir Armine Wodehouse, 5th Baronet (c. 1714 – 21 May 1777), was a British Tory Member of Parliament.Wodehouse was the son of Sir John Wodehouse, 4th Baronet, and Mary Fermor.His unusual first name reflects his connection with the Airmine Baronets through his grandmother Anne Airmine.He was elected to the House of Commons for Norfolk in 1737, a seat he held until 1768.In 1754 he succeeded his father in the baronetcy and to the family seat of Kimberley Hall in Norfolk.Wodehouse married Letitia Bacon, daughter of Sir Edmund Bacon, 6th Baronet, in 1738.He died in 1777 and was succeeded in the baronetcy by his eldest son John, who was created Baron Wodehouse in 1797 and who was the great-grandfather of statesman John Wodehouse, 1st Earl of Kimberley.Wodehouse's second son Reverend Philip Wodehouse (1745-1811) was the great-grandfather of the author P. G. Wodehouse while his third son Thomas Wodehouse was the grandfather of the colonial administrator Sir Philip Wodehouse.
Knowledge 1: John Wodehouse, 1st Baron Wodehouse
John Wodehouse, 1st Baron Wodehouse (4 April 1741 – 29 May 1834), known as Sir John Wodehouse, 6th Baronet, from 1777 to 1797, was a British landowner, Member of Parliament and peer.Wodehouse was the son of Sir Armine Wodehouse, 5th Baronet, and Letitia Bacon.He succeeded his father in the baronetcy in 1777 and in 1784 he was elected to the House of Commons for Norfolk, a seat he held until 1797.In that year, he was raised to the peerage as Baron Wodehouse, of Kimberley in the County of Norfolk.In 1778, Wodehouse commissioned Capability Brown, to undertake a series of enhancements to his country seat, Kimberley Hall near Wymondham(Brown had previously undertaken works for Sir Armine in 1762).By 1827, Woodhouse had developed a pleasure ground, a southwards extension to the park and three lodged entrances.The landscape which Wodehouse created has largely survived and is listed Grade II*.
Lord Wodehouse married Sophia Berkeley, daughter of the Hon.Charles Berkeley, in 1769.He died in May 1834 aged 93, and was succeeded in his titles by his eldest son John. [SEP] Knowledge 2: Sir John Wodehouse, 4th Baronet
Sir John Wodehouse, 4th Baronet( 23 March 1669 – 6 August 1754), was a British Tory Member of Parliament.A member of an old Norfolk family, Wodehouse succeeded his grandfather Sir Philip Wodehouse, 3rd Baronet, in the baronetcy on 6 May 1681.He was the son of Thomas Wodehouse and Anne Airmine, daughter and co-heiress of Sir William Airmine, 2nd Baronet.In 1695 he was elected to the House of Commons for Thetford, a seat he held until 1698 and again from 1701 to 1702 and 1705 to 1708.He also represented Norfolk from 1710 to 1713.At some point he was the Recorder of Thetford.Wodehouse married Elizabeth Benson in 1700.After her early death he married Mary Fermor, daughter of William Fermor, 1st Baron Leominster.He died in August 1754, aged 85, and was succeeded in the baronetcy by his son from his second marriage, Armine- another son, William, had predeceased him.Wodehouse's descendants include Foreign Secretary John Wodehouse, 1st Earl of Kimberley, and the author P. G. Wodehouse.
Knowledge 1: Sir John Wodehouse, 4th Baronet
Sir John Wodehouse, 4th Baronet( 23 March 1669 – 6 August 1754), was a British Tory Member of Parliament.A member of an old Norfolk family, Wodehouse succeeded his grandfather Sir Philip Wodehouse, 3rd Baronet, in the baronetcy on 6 May 1681.He was the son of Thomas Wodehouse and Anne Airmine, daughter and co-heiress of Sir William Airmine, 2nd Baronet.In 1695 he was elected to the House of Commons for Thetford, a seat he held until 1698 and again from 1701 to 1702 and 1705 to 1708.He also represented Norfolk from 1710 to 1713.At some point he was the Recorder of Thetford.Wodehouse married Elizabeth Benson in 1700.After her early death he married Mary Fermor, daughter of William Fermor, 1st Baron Leominster.He died in August 1754, aged 85, and was succeeded in the baronetcy by his son from his second marriage, Armine- another son, William, had predeceased him.Wodehouse's descendants include Foreign Secretary John Wodehouse, 1st Earl of Kimberley, and the author P. G. Wodehouse. [SEP] Knowledge 2: John Wodehouse, 1st Earl of Kimberley
John Wodehouse, 1st Earl of Kimberley,( 7 January 18268 April 1902), known as The 3rd Baron Wodehouse from 1846 to 1866, was a British Liberal politician.He held office in every Liberal administration from 1852 to 1895, notably as Secretary of State for the Colonies and as Foreign Secretary.

Answer: Mary Fermor