Diana Guardato
Diana Guardato was a member of the aristocratic Patrician Guardato family, and had three children with King Ferdinand I: Diana Guardato is the 16th- Great Grandmother of His Royal Highness Albert II of Belgium, 15th- Great Grandmother of His Majesty Juan Carlos
I of Spain, 17th- Great Grandmother of Philippe of Belgium, 14th- Great Grandmother of His Majesty Manuel II of Portugal, 16th- Great Grandmother of Grand Duke Henri, as well as many others.
Kaoru Hatoyama
After the elections of 2009, she became more widely known as the grandmother of Prime Minister Yukio Hatoyama and his politician brother Kunio Hatoyama.
Anne Denman
Anne Denman( 1587–1661) was born in Olde Hall, Retford, Nottinghamshire.
Through a fortunate second marriage with Thomas Aylesbury, she became the grandmother of Lady Anne Hyde, Duchess of York and great- grandmother of Queen Mary II and Queen Anne.
Vincent de Bourbon, Count of Guingamp
Vincent de Bourbon, Count of Guingamp
(Vincent Marie Louis; 22 June 1750 – 14 March 1752) was a son of Louis Jean Marie de Bourbon, Duke of Penthièvre and died before his second birthday.
Fourth child born to Louis Jean Marie de Bourbon, Duke of Penthièvre, by his wife, Maria Teresa d'Este.
His only brother to survive childhood was'Louis
Alexandre, Prince of Lamballe.
Vincent died at the Palace of Versailles in his mother's suite of rooms there,
Years after his death his posthumous sister, Louise Marie Adélaïde de Bourbon moved his remains to the Royal Chapel of Dreux.
Mona Hopton Bell
Mona Hopton Bell( 1867- 1940) was a British artist, best known for her portraits of civic figures.
She was the grandmother of the painter Jean H. Bell.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Louis Jean Marie de Bourbon, Duke of Penthièvre
Louis Jean Marie de Bourbon (16 November 1725 – 4 March 1793) was the son of Louis Alexandre de Bourbon and his wife Marie Victoire de Noailles.
He was also a grandson of Louis XIV of France and his mistress, Madame de Montespan.
From birth he was known as the Duke of Penthièvre.
He also possessed the following titles: Prince of Lamballe (given later as a courtesy title to the duke's only surviving son); Prince of Carignano; Duke of Rambouillet; Duke of Aumale (1775); Duke of Gisors; Duke of Châteauvillain; Duke of Arc-en-Barrois; Duke of Amboise; Count of Eu; Count of Guingamp.
He was the father in law of "Philippe Égalité".
Vincent, Count Benedetti
Vincent, Count Benedetti( 29 April 181728 March 1900) was a French diplomat.
He is probably best known as one of the central figures in the instigation of the Franco- Prussian War.
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.
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.

Question: Who is Vincent De Bourbon, Count Of Guingamp's paternal grandmother?