Éléonore Desmier d'Olbreuse
Éléonore Marie Desmier d'Olbreuse (3 January 1639 – 5 February 1722) was the wife of George William, Duke of Lauenburg and Prince of Celle.
She was the mother of Sophia Dorothea of Celle, who was the wife of George I of Great Britain.
Thus she is the maternal grandmother of George II.
Merlin Holland
Christopher Merlin Vyvyan Holland( born 1945 in London) is a biographer and editor.
He is the only grandchild of Oscar Wilde, whose life he has researched and written about extensively.
Albina du Boisrouvray
Countess Albina du Boisrouvray( born 1941) is a former journalist and film producer who has become a global philanthropist and social entrepreneur working with AIDS victims and impoverished communities around the world.
She is the founder of FXB International, a non-governmental organization established in memory of her son, François- Xavier Bagnoud.
Du Boisrouvray is the grandchild of the Bolivian" King of Tin", Simón Patiño.
She is the cousin of Prince Rainier of Monaco and godmother to Charlotte Casiraghi, daughter of Princess Caroline of Monaco.
Constance Anne Herschel
Constance Anne Herschel( 1855- 1939), later known as Lady Lubbock, was a scientist and mathematician.
Herschel held the post of resident lecturer in natural sciences and mathematics at Girton College, Cambridge.
She was the child of Sir John Frederick William Herschel, and the grandchild of William Herschel.
She wrote a family history of the famous scientific dynasty by compiling family sources,' The Herschel Chronicle'.
She married Sir Neville Lubbock.
George Blake Grinnell
George Blake Grinell (November 11, 1823 – December 19, 1891) was an American merchant and financier.
Grinnell was born in Greenfield, Massachusetts, the son of George Grinnell Jr. (also spelled Grennell), state senator and U. S. representative, and Eliza Seymour Perkins.
He was educated in the public schools of Greenfield, and as a boy went to Auburn, New York, employed in the bank of his uncle, James Seymour.
In 1843 he came to New York City, and look a position in the wholesale dry-goods house of his cousin, George Bird.
In 1857 he became a partner, and on the death of his cousin he continued the business until 1861, forming a partnership with Levi P. Morton (later Governor of the New York and Vice President of the United States) under the firm name of Morton, Grinnell & Co. which was a successful operation until the breaking out of the Civil War, when it failed along with many other businesses.
In 1866 he formed a partnership with Wellington Clapp, with Horace F. Clark as special partner, for the business of stockbroking.
The firm was very successful, and was largely employed by Cornelius Vanderbilt.
On the retirement of Clapp in 1869, Grinnell continued the business until 1873, when he retired.
In his early life Grinnell was, at different times, director in various organizations and corporations, of the Mutual Life Insurance Company, and various banks.
He was a member of the New York Chamber of Commerce.
Grinnell married Helen Alvord Lansing, daughter of Dirck Cornelius and Laura (Alexander) Lansing, on December 21, 1848.
He was a member of the Protestant Episcopal church, and for many years vestryman of the Church of the Intercession, Mangattan.
His son George Bird Grinnell became a noted explorer and conservationist.
Stokkseyrar-Dísa
Thordis Markusdottir(" Þórdís Markúsdóttir"), known as Stokkseyrar- Dísa( 1668 – 1728), was an Icelandic magician( Galdrmaster).
She is known in history for her alleged magical powers.
She is the subject of a least ten different folk sagas depicting her experiments within magic or Galdr.
Thordis Markusdottir belonged to the elite of the Iceland and was the grandchild of sheriff Torfi Erlendsson of Stafnes and related to Thormodus Torfæus, historian of the King of Denmark.
She lived in Stokkseyri, thereby the name Stokkseyrar- Dísa.
Some of the sagas around her centers on her magical duels with Eiríkur í Vogsósum.
Princess Caroline of Gloucester
Princess Caroline of Gloucester( Caroline Augusta Maria; 24 June 177414 March 1775) was an infant member of the British Royal Family, a great- grandchild of George II, niece of George III and daughter of the 1st Duke of Gloucester and Edinburgh and his wife, Maria Walpole, daughter of Sir Edward Walpole and his mistress Dorothy Clement.
George Grennell Jr.
George Grennell Jr. (December 25, 1786 – November 19, 1877) was a U.S. Congressman from Massachusetts.
He was born in Greenfield, Massachusetts on December 25, 1786 to parents George and Lydia
(Stevens) Grennell.
He attended Deerfield Academy and graduated from Dartmouth College in 1808.
He was admitted to the bar in 1811 and served as prosecuting attorney for Franklin County 1820-1828.
Grennell was a member of the Massachusetts State Senate 1825-1827.
Grennell was elected as an Anti-Jacksonian to the Twenty-first through the Twenty-six Congresses and reelected as a Whig to the Twenty-fifth Congress (March 4, 1829 – March 3, 1839).
He was not a candidate for renomination in 1838.
Grennell served as a trustee of Amherst College 1838-1859, a judge of probate 1849-1853, clerk of Franklin County Courts 1853-1865, and the first president of the Troy and Greenfield Railroad.
Grennell married twice: first to Helen Adelle Blake in 1814 and second to Eliza Seymour Perkins in 1820.
His son George Blake Grinnell became a noted businessman.
Grennell died in Greenfield, Massachusetts November 19, 1877 and was interned in Greenfield's Green River Cemetery.
Jim Ramel Kjellgren
Jim Love Ramel Kjellgren,( born 18 July 1987) is a Swedish actor.
He is the son of Lotta Ramel and and the grandchild of Povel Ramel.
He is perhaps best known as the character Jonte in the SVT series Eva& Adam, he reprised the role in the film" Eva& Adam – fyra födelsedagar och ett fiasko".
Diana Weston
Diana Weston( born 13 November 1953 in Toronto, Ontario, Canada) is an English actress who has been on British television since 1975.
She is a grandchild of Charles Basil Price.

Question: Who is the grandchild of George Grennell Jr.?
Answer: George Bird Grinnell