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.
Urraca Afonso
Urraca Afonso (c.1260-1290?) was a Portuguese noble lady, illegitimate daughter of Afonso III of Portugal and Madragana Ben Aloandro.
And half sister of Denis of Portugal.
Urraca was twice married, first to , and then with João Mendes de Briteiros.
Afonso of Portugal, Lord of Leiria
Afonso of Portugal( c. 1288 – Lisbon, c. 1300;; or" Alphonse") was a Portuguese noble, son of Afonso of Portugal, Lord of Portalegre and his wife Violante Manuel.
He was granted the title of Lord of Leiria.
Afonso of Portugal died in 1300 when he was about twelve years of age without having married and without leaving any offspring.
Isabel of Coimbra
Infanta Isabel of Coimbra( Isabella of Portugal)
( 1 March 1432 – 2 December 1455) was a Portuguese infanta and a queen consort of Portugal as the first spouse of King Afonso V of Portugal.
Afonso III of Portugal
Afonso III (rare English alternatives: "Alphonzo" or "Alphonse"), or "Affonso" (Archaic Portuguese), "Alfonso" or "Alphonso" (Portuguese-Galician) or "Alphonsus" (Latin), the Boulonnais (Port. "
o Bolonhês"), King of Portugal (5 May 121016 February 1279) was the first to use the title "King of Portugal and the Algarve", from 1249.
He was the second son of King Afonso II of Portugal and his wife, Urraca of Castile; he succeeded his brother, King Sancho II of Portugal, who died on 4 January 1248.
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.
Joanna, Princess of Portugal
Joan of Portugal (6 February 1452 – 12 May 1490) was a Portuguese saint, regent and princess of the House of Aviz, daughter of King Afonso V of Portugal and his first wife Isabella of Coimbra.
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.
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.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.

Question: Who is the paternal grandmother of Urraca Afonso?
Answer: Urraca of Castile