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.
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.
Hüma Hatun
Hüma Hatun (1410 ‒ September 1449) was the fourth wife of Ottoman Sultan Murad II and mother of Mehmed II and the grandmother of Bayezid II.
Neil Bush
Neil Mallon Bush (born January 22, 1955) is an American businessman and investor.
He is the fourth of six children of former President George H. W. Bush and Barbara Bush (née Pierce).
His five siblings are George W. Bush, the 43rd President of the United States; Jeb Bush, a former governor of Florida; Pauline Robinson "Robin" Bush, who died of leukemia at the age of three; Marvin Bush; Dorothy Bush Koch.
Neil Bush is currently a businessman based in Texas.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Lauren Bush
Lauren Pierce Bush (born June 25, 1984) is the CEO and Co-Founder of FEED Projects.
She is also known for her previous career as a fashion model and designer.
She is a daughter of Neil Bush and Sharon Bush (née Smith), a granddaughter of former President George H. W. Bush and niece of former President George W. Bush and former Florida Governor Jeb Bush.
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.
Gülbahar Hatun (wife of Mehmed II)
Gülbahar Hatun( 1432 – 1492) was the consort of Sultan Mehmed II, and mother of Sultan Bayezid II of the Ottoman Empire and the grandmother of Selim I.
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.
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.

Question: Who is the paternal grandmother of Lauren Bush?
Answer: Barbara Bush