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.
Karl-Konstantin von Habsburg
Karl-Konstantin von Habsburg (Given names: Karl-Konstantin Michael Stephan Maria; born on 20 July 2004 in Budapest) referred to in Austria as Karl-Konstantin Habsburg-Lothringen, in Hungary as Habsburg Károly Konstantin, and also as Archduke Karl-Konstantin of Austria, is the only son of Georg von Habsburg and Duchess Eilika of Oldenburg.
, he is considered third in line of succession to the former Austro-Hungarian throne.
He is the great-grandson of Emperor Charles I of Austria through his grandfather Otto von Habsburg.
Through his maternal grandfather, he is a descendant of George II of Great Britain, and would therefore be in line for the British throne were he not a Catholic and barred by the Act of Settlement.
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.
Michaela von Habsburg
Michaela von Habsburg(" Michaela Maria Madeleine Kiliana Habsburg- Lothringen") was born 13 September 1954, in Würzburg.
She is the twin sister of Monika von Habsburg, and daughter of Otto von Habsburg and Princess Regina of Saxe- Meiningen.
Francesca von Habsburg
Francesca von Habsburg- Lothringen( born 7 June 1958) is an art collector and the estranged wife of Karl von Habsburg, current head of the House of Habsburg- Lorraine.
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.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Andrea von Habsburg
Andrea von Habsburg(" Andrea Maria von Habsburg- Lothringen") Archduchess of Austria, Hereditary Countess of Neipperg,( born 30 May 1953, in Würzburg, Bavaria), is the first child and oldest daughter of Otto von Habsburg and his wife, Princess Regina of Saxe- Meiningen.
Georg von Habsburg
Georg von Habsburg (given names "Paul Georg Maria Joseph Dominikus"; born 16 December 1964, in Starnberg), referred to in Austria as Georg Habsburg-Lothringen, in Hungary as Habsburg György, and by his royal name as Archduke Georg of Austria, is the second son, and seventh and youngest child of Otto von Habsburg, the last Crown Prince of Austria-Hungary, and Princess Regina of Saxe-Meiningen.

Question: Who is Karl-Konstantin Von Habsburg's paternal grandmother?