John of Saxony
John( 12 December 1801 – 29 October 1873) was a King of Saxony and a member of the House of Wettin.
He was born in Dresden, the third son of Maximilian, Hereditary Prince of Saxony — younger son of the Elector Frederick Christian of Saxony—by his first wife, Carolina of Bourbon, Princess of Parma.
Frederick Christian, Elector of Saxony
Frederick Christian (5 September 1722 – 17 December 1763) was the Prince-Elector of Saxony for fewer than three months in 1763.
He was a member of the House of Wettin.
He was the third but eldest surviving son of Frederick Augustus II, Prince-Elector of Saxony and King of Poland, by his wife, Maria Josepha of Austria.
Georg, Crown Prince of Saxony
Georg, Crown Prince of Saxony or George( 15 January 1893 – 14 May 1943) the last Crown Prince of Saxony, was the heir to the King of Saxony, Frederick Augustus III, at the time of the monarchy's abolition on 13 November 1918.
He later became a Roman Catholic priest and a Jesuit.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Maximilian, Hereditary Prince of Saxony
Prince Maximilian of Saxony (Maximilian Maria Joseph Anton Johann Baptist Johann Evangelista
Ignaz Augustin
Xavier Aloys Johann Nepomuk Januar Hermenegild Agnellis Paschalis; Dresden, 13 April 1759 – Dresden, 3 January 1838) was a German prince and a member of the House of Wettin.
He was the sixth but third and youngest surviving son of Frederick Christian, Elector of Saxony and the composer Princess Maria Antonia Walpurgis of Bavaria.
Frederick Augustus II of Saxony
Frederick Augustus II( 18 May 1797 in Dresden – 9 August 1854 in Brennbüchel, Karrösten, Tyrol) was King of Saxony and a member of the House of Wettin.
He was the eldest son of Maximilian, Prince of Saxony — younger son of the Elector Frederick Christian of Saxony — by his first wife, Caroline of Bourbon, Princess of Parma.
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.
Princess Maria Ferdinanda of Saxony
Princess Maria Ferdinanda of Saxony( 27 April 1796 – 3 January 1865) was a daughter of Maximilian, Crown Prince of Saxony and his first wife Princess Carolina of Parma.
She was by marriage Grand Duchess of Tuscany from 1821 to 1824.
Christina of Saxony
Christina of Saxony( b. Torgau, 25 December 1461 – d. Odense, 8 December 1521), was Queen consort of Denmark, Norway, and Sweden.
She was born a granddaughter of Frederick the Gentle of Saxony, and daughter of Ernest, Elector of Saxony and Elisabeth of Bavaria.
She was the grandmother of Christina of Denmark through her son Christian II.
Maria Emanuel, Margrave of Meissen
Maria Emanuel, Prince of Saxony, Duke of Saxony, Margrave of Meissen( 31 January 1926 – 23 July 2012) was the head of the Royal House of Saxony.

Question: Who is Maximilian, Hereditary Prince Of Saxony's paternal grandmother?
Answer: Maria Josepha of Austria