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.
Carloman of Bavaria
Carloman (c. 830 – 22 March 880) was a Frankish king of the Carolingian dynasty.
He was the eldest son of Louis the German, king of East Francia, and Hemma, daughter of a Bavarian count.
His father appointed him margrave of Pannonia in 856, and upon his father's death in 876 he became King of Bavaria.
He was appointed by King Louis II of Italy as his successor, but the Kingdom of Italy was taken by his uncle Charles the Bald in 875.
Carloman only conquered it in 877.
In 879 he was incapacitated, perhaps by a stroke, and abdicated his domains in favour of his younger brothers: Bavaria to Louis the Younger and Italy to Charles the Fat.
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.
Louis the German
Louis the German (c. 806/810 – 28 August 876), also known as Louis II, was the first king of East Francia, and ruled from 843876 AD.
Grandson of emperor Charlemagne and the third son of Louis the Pious, emperor of Francia, and his first wife, Ermengarde of Hesbaye, he received the appellation "Germanicus" shortly after his death in recognition of Magna Germania of the Roman Empire, reflecting the Carolingian's assertions that they were the rightful descendants of the Roman Empire.
After protracted clashes with his father and his brothers, Louis received the East Frankish Empire in the 843 Treaty of Verdun.
His attempts to conquer the West Frankish Empire of his half-brother Charles the Bald in 858–59 were unsuccessful.
The 860s were marked by a severe crisis, with the East Frankish rebellions of the sons, as well as struggles to maintain supremacy over his realm.
In the Treaty of Meerssen he acquired Lotharingia for the East Frankish Empire in 870.
On the other hand, he tried and failed to claim both the title of Emperor and Italy.
In the East, Louis was able to reach a longer-term peace agreement in 874 after decades of conflict with the Moravians.
Due to a decline in the written form in administration and government, Louis' reign predates Ottonian times.
Duchess Marie Gabrielle in Bavaria
Duchess Marie Gabrielle in Bavaria( 9 October 1878 in Tegernsee, Bavaria – 24 October 1912 in Sorrento, Italy) was the youngest daughter of Duke Karl Theodor in Bavaria and his second wife, Infanta Maria Josepha of Portugal.
She married Prince Rupprecht of Bavaria in 1900 but died before he became Crown Prince.
Through her second son Albrecht, Marie Gabrielle was the grandmother of the present Duke of Bavaria, Franz.
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.
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.
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.

Question: Who is the paternal grandmother of Carloman Of Bavaria?
Answer: Ermengarde of Hesbaye