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.
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.
Elizabeth FitzHugh
Elizabeth FitzHugh( 1455/65- before 10 July 1507) was an English noblewoman.
She is best known for being the grandmother of Catherine Parr, sixth queen consort to Henry VIII, and her siblings Anne Herbert, Countess of Pembroke, and William Parr, 1st Marquess of Northampton.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Stephen V of Hungary
Stephen V (before 18 October 1239 – 6 August 1272, Csepel Island) was King of Hungary and Croatia between 1270 and 1272, and Duke of Styria from 1258 to 1260.
He was the oldest son of King Béla IV and Maria Laskarina.
King Béla had his son crowned king at the age of six and appointed him Duke of Slavonia.
Still a child, Stephen married Elizabeth, a daughter of a chieftain of the Cumans whom his father settled in the Great Hungarian Plain.
King Béla appointed Stephen Duke of Transylvania in 1257 and Duke of Styria in 1258.
The local noblemen in Styria, which had been annexed four years before, opposed his rule.
Assisted by King Ottokar II of Bohemia, they rebelled and expelled Stephen's troops from most parts of Styria.
After Ottokar II routed the united army of Stephen and his father in the Battle of Kressenbrunn on 12 July 1260, Stephen left Styria and returned to Transylvania.
Stephen forced his father to cede all the lands of the Kingdom of Hungary to the east of the Danube to him and adopted the title of junior king in 1262.
In two years, a civil war broke out between father and son, because Stephen accused Béla of planning to disinherit him.
They concluded a peace treaty in 1266, but confidence was never restored between them.
Stephen succeeded his father, who died on 3 May 1270, without difficulties, but his sister Anna and his father's closest advisors fled to the Kingdom of Bohemia.
Ottokar II invaded Hungary in the spring of 1271, but Stephen routed him.
In next summer, a rebellious lord captured and imprisoned Stephen's son, Ladislaus.
Shortly thereafter, Stephen unexpectedly fell ill and died.
Slavica Đukić Dejanović
Slavica Đukić Dejanović( born 4 July 1951) is a Serbian politician, current Minister without portfolio in the Government of Serbia, and former Minister of Health in the Government of Serbia, acting Head of State of Serbia and President of the National Assembly of Serbia, and a long- time member of the Socialist Party of Serbia.
Dejanović is the second woman at the head of the National Assembly of Serbia, after Nataša Mićić, who was President of Parliament 2001- 2004, and the first one in the independent Serbia.
In that role she was also the Acting President of Serbia following the resignation of Boris Tadić in 2012 and was the first woman to hold the post of Head of State of Serbia since independence in 2006.
Catherine of Hungary, Duchess of Świdnica
Catherine of Hungary( died 1355) was a daughter of King Charles I of Hungary.
Her mother is uncertain.
She was a member of the House of Anjou and was a Hungarian princess.
Wilhelmine Amalia of Brunswick-Lüneburg
Wilhelmine Amalia of Brunswick- Lüneburg( 21 April 1673 – 10 April 1742) was Holy Roman Empress, Queen of the Germans, Queen of Hungary, Queen of Bohemia, Archduchess consort of Austria etc. as the spouse of Joseph I, Holy Roman Emperor.
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.
Catherine of Hungary, Queen of Serbia
Catherine of Hungary ("/Katalina"; c. 1256 – after 1314) was the second daughter of Stephen V of Hungary and his wife Queen Elizabeth, daughter of Seyhan, chieftain of the Cumans.
Catherine became Queen consort of Serbia by her marriage to Stephen Dragutin of Serbia.

Question: Who is the paternal grandmother of Catherine Of Hungary, Queen Of Serbia?
Answer: Maria Laskarina