Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
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.
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.
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.
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.
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.
Susanna Ramel
Susanna Ragnarsdotter Ramel (née Östberg; previously Gillgren) (born 1 April 1920) is a Swedish actress.
She has appeared in several films like Skanör-Falsterbo (1939) and Livet på en pinne (1942).
Ramel is the daughter of Ragnar Östberg and Carin Thiel.
Her daughter Lotta Ramel with Povel Ramel is also an actress.
In the 2018 film , Lotta Ramel plays the role of her mother.
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.
Mikael Ramel
Mikael Ramel, (born 19 January 1949) is a Swedish singer and musician.
He is the son of Povel Ramel and Susanna Ramel, and the brother of actress Lotta Ramel.
Ramel studied at the Solbacka läroverk at Stjärnhov, and in 1966 he became a member of the band Mufflers.
In 1965, he participated in the televisio show "Ramel
i rutan" along with his father.
They also recorded the music single "En ren familjeprodukt" together.
The same year he started the music group Steampacket, and they released eight music singles until 1968.
In 1967, Ramel also released the solo single Mikael & Michael along with Michael B. Tretow.
Ramels first solo album named "Till dej" was released in 1972.
That same year he became a member of the band Fläsket brinner.
Ramels second album "Extra vagansa" (1974) was followed by the third album "3:dje skivan" (1977).
During the 1990s, Ramel released another three albums "Strömavbrott" (1982), "Bra sak" (1984) and "En för alla" (1986).
In 1986, Ramel was awarded the Karamelodiktstipendiet an award that annually are given to someone who uses the Swedish language in music, established by his father.

Question: Who is Mikael Ramel's maternal grandmother?
Answer: Carin Thiel