Princess Maria Cristina of Savoy-Aosta
Maria Cristina of Savoy- Aosta( Maria Cristina Giusta Elena Giovanna; born 12 September 1933) is an Italian princess, member of the House of Savoy- Aosta by birth and of the House of Bourbon- Two Sicilies by marriage.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Maria Cristina of Savoy
Blessed Maria Cristina of Savoy (Maria Cristina Carlotta Giuseppa Gaetana Efisia; 14 November 1812 – 21 January 1836) was the first Queen consort of Ferdinand II of the Two Sicilies.
She died as a result of childbirth.
Infanta María Cristina of Spain
Infanta Maria Cristina of Spain, Countess Marone ("
Doña María
Cristina
Teresa Alejandra
María de Guadalupe María de la Concepción
Ildefonsa Victoria Eugenia de Borbón y Battenberg"; 12 December 1911 – 23 December 1996) was the fifth child and younger daughter of Alfonso XIII of Spain and Victoria Eugenie of Battenberg and paternal aunt of King Juan Carlos I.
Maria Cristina of Naples and Sicily
Maria Cristina of Naples and Sicily (Maria Cristina Amelia Teresa; 17 January 1779 – 11 March 1849) was a Princess of Naples and Sicily and later Queen of Sardinia as wife of King Charles Felix.
Infanta María Teresa of Spain
Infanta Maria Teresa of Spain( 12 November 1882 in Madrid, Kingdom of Spain – 23 September 1912 in Madrid, Kingdom of Spain) was the second eldest child and daughter of Alfonso XII of Spain and his second wife Maria Christina of Austria.
Maria Teresa was an Infanta of Spain and a member of the House of Bourbon by birth.
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.
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.
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.
Alfonso XIII of Spain
Alfonso XIII (17 May 1886 – 28 February 1941), also known as El Africano or the African, was King of Spain from 1886 until the proclamation of the Second Republic in 1931.
Alfonso was monarch from birth as his father, Alfonso XII, had died the previous year.
Alfonso's mother, Maria Christina of Austria, served as regent until he assumed full powers on his sixteenth birthday in 1902.
During Alfonso's reign Spain experienced four major problems that contributed to the end of the liberal monarchy: the lack of real political representation of broad social groups; the poor situation of the popular classes, especially peasants; problems arising from the Rif War; and Catalan nationalism.
The political and social turbulence that began with the Spanish–American War prevented the turnaround parties from establishing a true liberal democracy, which led to the establishment of the dictatorship of Miguel Primo de Rivera.
With the political failure of the dictatorship, Alfonso impelled a return to the democratic normality with the intention of regenerating the regime.
Nevertheless, it was abandoned by all political classes, as they felt betrayed by the king's support of the dictatorship of Primo de Rivera.
He left Spain voluntarily after the municipal elections of April 1931, which were taken as a plebiscite on abolishing the monarchy.

Question: Who is Infanta María Cristina Of Spain's paternal grandmother?
Answer: Maria Christina of Austria