Aloisio Gonzaga
Aloisio Gonzaga (20 April 1494, Luzzara - 19 July 1549, Castel Goffredo) was an Italian condottiero.
Usually known as Aloisio, other sources call him Aluigi, Loysio, Luigi or Luigi Alessandro.
He was the sixth son of another condottiero, Rodolfo Gonzaga and his wife Caterina Pico.
The lord of Castel Goffredo, Castiglione and Solferino, he was the founder of two cadet branches of the Gonzaga family known as the "Castel Goffredo, Castiglione and Solferino Gonzagas" and "Castel Goffredo Gonzagas".
- both branches went extinct in 1593.
He backed the Holy Roman Emperor and its leader Charles V - Charles visited him at his residence in 1543.
He was one of the most important figures in the history of Castel Goffredo.
He made it capital of his small Marquisate of Castel Goffredo and produced most of its town planning.
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.
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.
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.
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.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Rodolfo Gonzaga
Rodolfo Gonzaga (18 April 1452, Mantua - 6 July 1495, Fornovo) was an Italian condottiero.
He was the son of Ludovico III Gonzaga and Barbara of Brandenburg.
He had married Caterina Pico
and he was the founder of the Castel Goffredo, Castiglione and Solferino cadet branch of the House of Gonzaga.
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.
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 Aloisio Gonzaga's paternal grandmother?
Answer: Barbara of Brandenburg