Princess Marie of Battenberg
Princess Marie Caroline of Battenberg( 15 February 185220 June 1923) was a Princess of Battenberg and, by marriage, the Princess of Erbach- Schönberg.
She worked as a writer and translator.
Prince Alexander of Hesse and by Rhine
Prince Alexander Ludwig Georg Friedrich Emil of Hesse, GCB (15 July 1823 – 15 December 1888) was the third son and fourth child of Louis II, Grand Duke of Hesse and Wilhelmina of Baden.
He was a brother of Tsarina Maria Alexandrovna, wife of Tsar Alexander II.
The Battenberg / Mountbatten family descends from Alexander and his wife Countess Julia von Hauke, a former lady-in-waiting to his sister.
Princess Theodora of Greece and Denmark (1906–1969)
Princess Theodora of Greece and Denmark( 30 May 1906 – 16 October 1969) was the second child and daughter of Prince Andrew of Greece and Denmark and Princess Alice of Battenberg, and the second eldest sister of Prince Philip, Duke of Edinburgh.
Prince Francis Joseph of Braganza
Prince Francis Joseph of Braganza (7 September 1879 – 15 June 1919) was a member of the exiled branch of House of Braganza and an officer in the Austro-Hungarian Army.
During his life he was involved in a number of incidents ranging from sex scandals to swindles.
Maria Chiara Spinucci
Maria Chiara Spinucci( 1741–1792), was an Italian aristocrat, courtier of Duchess Maria Antonia of Bavaria and the morganatic spouse of Prince Francis Xavier of Saxony.
Princess Margarita of Greece and Denmark
Princess Margarita of Greece and Denmark( 18 April 1905 – 24 April 1981) was the eldest child and daughter of Prince Andrew of Greece and Denmark and Princess Alice of Battenberg.
She was the first great- great- grandchild of Queen Victoria, and the eldest sister of Prince Philip, Duke of Edinburgh.
Franz Joseph, Prince of Hohenzollern-Emden
Franz Joseph
Maria Ludwig Anton Thassilo Prinz von Hohenzollern- Emden
( English:" Prince Francis Joseph of Hohenzollern- Emden"; 30 August 1891 – 3 April 1964) was a member of the Roman Catholic branch of the House of Hohenzollern.
He was born as Prince Franz Joseph of Hohenzollern and adopted the surname Prinz von Hohenzollern- Emden in 1933.
Prince Francis Joseph of Battenberg
Prince Francis Joseph of Battenberg, also known as Prince Franz Joseph of Battenberg, , (24 September 1861 – 31 July 1924), was the fourth and youngest son and child of Prince Alexander of Hesse and by Rhine and Countess Julia von Hauke.
Archduke Franz Karl of Austria
Archduke Franz Karl Joseph of Austria (17 December 1802 – 8 March 1878) was a member of the House of Habsburg-Lorraine.
He was the father of two emperors:
Franz Joseph I of Austria and Maximilian I of Mexico.
Through his third son Karl Ludwig, he was the grandfather of Archduke Franz Ferdinand of Austria – whose assassination sparked the hostilities that led to the outbreak of World War I – and the great-grandfather of the last Habsburg emperor Karl I.
Prince Francis of Teck
Prince Francis of Teck, (Francis Joseph Leopold Frederick; 9 January 1870 – 22 October 1910) was the brother of the British queen Mary of Teck, wife of King George V.

Question: Who is Prince Francis Joseph Of Battenberg's paternal grandfather?
Answer: Louis II, Grand Duke of Hesse