Lawrence Parsons, 4th Earl of Rosse
Lawrence Parsons, 4th Earl of Rosse, KP, FRS( 17 November 1840 – 29 August 1908) was a member of the Irish peerage and an amateur astronomer.
His name is often given as Laurence Parsons.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Hubba bint Hulail
Hubba bint Hulail was the grandmother of Hashim ibn' Abd Manaf, thus the great- great- great- grandmother of the Islamic" Nabī"( Prophet) Muhammad ibn Abdullah.
Sir William Parsons, 4th Baronet
Sir William Parsons, 4th Baronet of Birr Castle (6 May 1731 – 1 May 1791) was an Irish politician and baronet.
He was the son of Sir Laurence Parsons, 3rd Baronet and Mary Sprigge.
From 1757 until his death in 1797, Parsons served as Member of Parliament (MP) in the Irish House of Commons for King's County.
He was High Sheriff of King's County in 1779.
Anne Woodville
Anne Woodville, Viscountess Bourchier( c. 1438 – 30 July 1489) was an English noblewoman.
She was a younger sister of Queen Consort Elizabeth Woodville to whom she served as a lady- in- waiting.
Anne was married twice; first to William Bourchier, Viscount Bourchier, and secondly to George Grey, 2nd Earl of Kent.
Anne was the grandmother of the disinherited adulteress Anne Bourchier, 7th Baroness Bourchier, and an ancestress of Robert Devereux, 2nd Earl of Essex.
Otto Boeddicker
Otto Boeddicker( 1853–1937) was a German astronomer.
He published drawings of naked- eye observations of the Milky Way in 1892, made over a period of six years.
He also observed the Moon, including the emitted heat during a total eclipse of the Moon.
In 1880 he became the astronomical assistant of Lawrence Parsons, 4th Earl of Rosse at Birr Castle in Birr, Ireland, and remained in that position until the death of the Earl in 1908.
He left for Germany in 1916 after being designated an enemy alien.
A crater on Mars is named in his honor.
Tjuyu
Tjuyu( sometimes transliterated as Thuya or Thuyu) was an Egyptian noblewoman and the mother of queen Tiye, and the wife of Yuya.
She is the grandmother of Akhenaten, and great grandmother of Tutankhamun.
Margaret de Stafford
Margaret Stafford( born c. 1364; died 9 June 1396) was the daughter of Hugh de Stafford, 2nd Earl of Stafford, and Philippa de Beauchamp.
She was the first wife of Ralph Neville, 1st Earl of Westmorland, and the grandmother of the 2nd Earl.
Arthur Edward Knox
Arthur Edward Knox (28 December 1808, Dublin – 23 December 1886) was a British sportsman, amateur naturalist, author of three books, and one of the founders of the British Ornithological Union.
A. E. Knox graduated M.A. from Brasenose College in the University of Oxford.
He obtained a commission in the Second Regiment of Life Guards, from which he resigned about 1835 when he married Lady Jane Parsons, a daughter of Lawrence Parsons, 2nd Earl of Rosse.
The marriage produced three daughters and two sons, one of whom was Lawrence E. Knox.
A. E. Knox was a country gentleman who lived in Sussex and Surrey and contributed notes to "The Zoologist".
His 1849 book "Ornithological Rambles in Sussex" received a favourable review from his friend and country-neighbour, Bishop Wilberforce, helping the sale of the book so that a second edition appeared in 1850 and a third edition in 1855.
In November 1858 Knox became one of the founders of the British Ornithological Union.
There were favourable reviews for his 1872 book "Autumns on the Spey" dealing with salmon-fishing and deer-stalking in the vicinity of the River Spey; the book is based upon letters written by Knox to friends in England when he was staying, during several autumns, at Gordon Castle as a guest of Charles Gordon-Lennox, 6th Duke of Richmond.
Lawrence Parsons, 2nd Earl of Rosse
Lawrence Parsons, 2nd Earl of Rosse (21 May 1758 – 24 February 1841), known as Sir Lawrence Parsons, Bt, from 1791 to 1807, was an Irish peer.
Parsons was the son of Sir William Parsons, 4th Baronet and Mary Clere.
He succeeded his father in 1791 to the baronetcy and to Birr Castle, King's County (now known as County Offaly).
Between 1782 and 1790, he represented Dublin University in the Irish House of Commons.
Parsons sat then as Member of Parliament (MP) for King's County from 1791 until the Act of Union in 1801.
In the following co-option, he chose to sit for King's County also in the British House of Commons, a seat he held until 1807.
The latter year, he succeeded his uncle as second Earl of Rosse and Lord Oxmantown.
He also served as Governor of King's County from 1792 until the position was abolished in 1831.
In 1809, he became one of the Postmasters General of Ireland with Charles O'Neill, 1st Earl O'Neill, with whom he attended the laying of the foundation-stone for the new General Post Office in Dublin on 12 August 1814 by the Lord Lieutenant of Ireland, Charles Whitworth, 1st Earl Whitworth.
He later sat in the House of Lords as an Irish Representative Peer from 1809 until 1841 and served as Custos Rotulorum of King's County from 1828 until his death.

Question: Who is Lawrence Parsons, 2Nd Earl Of Rosse's paternal grandmother?
Answer: Mary Sprigge