Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
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.
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.
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.
Olav V of Norway
Olav V (born Prince Alexander of Denmark; 2 July 1903 – 17 January 1991) was King of Norway from 1957 until his death.
Olav was the only child of King Haakon VII of Norway and Maud of Wales.
He became heir apparent to the Norwegian throne when his father was elected King of Norway in 1905.
He was the first heir to the Norwegian throne to be brought up in Norway since Olav IV in the fourteenth century, and his parents made sure he was given as Norwegian an upbringing as possible.
In preparation for his future role, he attended both civilian and military schools.
In 1929, he married his first cousin Princess Märtha of Sweden.
During World War II his leadership was much appreciated and he was appointed Norwegian Chief of Defence in 1944.
At his death in 1991, he was the last surviving grandchild of Edward VII of the United Kingdom and Alexandra of Denmark.
Owing to his considerate, down-to-earth style, King Olav was immensely popular, resulting in the nickname "FolkekongenThe People's King").
In a 2005 poll by the Norwegian Broadcasting Corporation, Olav was voted "Norwegian of the Century".
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.
Harald V of Norway
Harald V (born 21 February 1937) is King of Norway, having ascended the throne upon the death of his father King Olav V on 17 January 1991.
Harald was the third child and only son of King Olav V and Princess Märtha of Sweden.
He was second in the line of succession at the time of his birth, behind his father.
In 1940, as a result of the German occupation during World War II, the royal family went into exile.
Harald spent part of his childhood in Sweden and the United States.
He returned to Norway in 1945, and subsequently studied for periods at the University of Oslo, the Norwegian Military Academy and Balliol College, Oxford.
In 1957, following the death of his grandfather, Haakon VII, Harald became crown prince.
A keen sportsman, he represented Norway in sailing at the 1964, 1968, and 1972 Olympic Games, and later became patron of World Sailing.
Harald married Sonja Haraldsen in 1968, their relationship having initially being controversial due to her status as a commoner.
The couple had two children, Märtha Louise and Haakon.
Harald succeeded his father as king in 1991, with Haakon becoming his heir apparent.
Princess Ingeborg of Denmark
Princess Ingeborg of Denmark( Ingeborg Charlotte Caroline Frederikke Louise; 2 August 1878 – 12 March 1958), was a Princess of Sweden by marriage to Prince Carl, Duke of Västergötland.
She was the daughter of Frederick VIII of Denmark, and the maternal grandmother of Harald V of Norway, Baudouin and Albert II of Belgium, the matrilineal great grandmother of Henri, Grand Duke of Luxembourg, and the paternal great- grandaunt of Carl XVI Gustaf of Sweden.
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.
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 Harald V Of Norway's paternal grandmother?
Answer: Maud of Wales