Lavinia Veiongo
Lavinia Veiongo Fotu( 9 February 1879 – 24 April 1902) was the Queen consort of Tonga from 1899 to 1902, and the first wife of George Tupou II.
Sālote Lupepauʻu
Sālote Lupepauʻu( – 8 September 1889) was the Queen consort of Tonga from 1845 to 1889.
She was the wife of George Tupou I and namesake of the Queen Salote College.
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.
Tāufaʻāhau Tupou IV
Tāufaʻāhau Tupou IV (4 July 1918 – 10 September 2006), son of Queen Sālote Tupou III and her consort Prince Viliami Tungī Mailefihi, was the king of Tonga from the death of his mother in 1965 until his own death in 2006.
Immediately prior to his death, he was the fourth longest-reigning living monarch in the world after Kings Bhumibol Adulyadej of Thailand, Abdul Halim of Kedah of Malaysia and Queen Elizabeth II of the United Kingdom.
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.
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.
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.
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.
George Tupou V
George Tupou V (Tongan: Siaosi Tupou, full name: Siaosi Tāufaʻāhau Manumataongo Tukuʻaho Tupou; 4 May 194818 March 2012) was the King of Tonga from the death of his father Tāufaʻāhau Tupou IV in 2006 until his own death six years later.

Question: Who is the paternal grandmother of George Tupou V?
Answer: Sālote Tupou III