Peter II of Portugal
"Dom" Pedro II (Peter II; 26 April 1648 – 9 December 1706), nicknamed "the Pacific", was the King of Portugal from 1683 until his death, previously serving as regent for his brother Afonso VI from 1668 until his own accession.
He was the fifth and last child of John IV and Luisa de Guzmán.
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.
José of Braganza, Archbishop of Braga
José of Braganza, Archbishop of Braga
(Lisbon, May 6, 1703-Ponte de Lima, June 3, 1756) was a natural son of Portuguese King Peter II and a Portuguese lady named Francisca Clara da Silva.
He studied at the University of Évora and achieved a doctorate in Theology.
He became Archbishop of Braga in 1739 and was consecrated in 1741.
He built in Braga the Sete Fontes a water supply system.
He is buried in the same city.
He was succeeded in his position by another natural-born noble, Gaspar of Braganza, Archbishop of Braga, son of his half-brother John V of Portugal.
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.
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.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
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.
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.
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.
João de Sousa
D. João de Sousa( 1647- 28 September 1710) was a Portuguese prelate, Bishop of Porto, Archbishop of Braga and Archbishop of Lisbon.

Question: Who is the paternal grandmother of José Of Braganza, Archbishop Of Braga?
Answer: Luisa de Guzmán