Lambert, Margrave of Tuscany
Lambert( died after 938) was the second son of Adalbert II of Tuscany and Bertha, daughter of Lothair II of Lotharingia.
He succeeded his elder brother, Guy, as count and duke of Lucca and margrave of Tuscany on his death in 928 or 929 without heirs.
In 931, before 17 October, Hugh, King of Italy, disowned and removed Lambert, giving Tuscany and the familial possession of Lucca to his brother Boso.
Hugh was Guy and Lambert's half- brother, as they had the same mother.
When Guy died, Hugh married Guy's widow, Marozia.
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.
Lothair I
Lothair I or Lothar I (Dutch and Medieval Latin: "Lotharius", German: "Lothar", French: "Lothaire", Italian: "Lotario") (795 – 29 September 855) was the Holy Roman Emperor (817–855, co-ruling with his father until 840), and the governor of Bavaria (815–817), King of Italy (818–855) and Middle Francia (840–855).
Lothair was the eldest son of the Carolingian emperor Louis the Pious and his wife Ermengarde of Hesbaye, daughter of Ingerman the duke of Hesbaye.
On several occasions, Lothair led his full-brothers Pepin I of Aquitaine and Louis the German in revolt against their father to protest against attempts to make their half-brother Charles the Bald a co-heir to the Frankish domains.
Upon the father's death, Charles and Louis joined forces against Lothair in a three-year civil war (840–843).
The struggles between the brothers led directly to the breakup of the Frankish Empire assembled by their grandfather Charlemagne, and laid the foundation for the development of modern France and Germany.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Theobald of Arles
Theobald( c. 854-895), count of Arles, was a Frank from the Bosonid- family.
He was a son of Hucbert and married Bertha, an illegitimate daughter of Lothair II, King of Lotharingia, who was renowned for her beauty and spirit.
They had two sons Hugh of Italy and Boso of Tuscany.
Waldrada of Lotharingia
Waldrada was the mistress, and later the wife, of Lothair II of Lotharingia.
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.
Lothair II
Lothair II (835 –) was the king of Lotharingia from 855 until his death.
He was the second son of Emperor Lothair I and Ermengarde of Tours.
He was married to Teutberga (died 875), daughter of Boso the Elder.
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.

Question: Who is the paternal grandmother of Lothair Ii?
Answer: Ermengarde of Hesbaye