Frederick Augustus III of Saxony
Frederick Augustus III (25 May 1865 – 18 February 1932) was the last King of Saxony (1904–1918) and a member of the House of Wettin.
Born in Dresden, Frederick Augustus was the first son of King George and his wife, Maria Anna of Portugal.
Frederick Augustus served in the Royal Saxon Army before becoming king, and later was promoted to Generalfeldmarschall.
Though well-loved by his subjects, he voluntarily abdicated as king on 13 November 1918, after the defeat of the German Empire in World War I.
He died in Sibyllenort (now Szczodre) in Lower Silesia and was buried in Dresden.
Countess Anna of Nassau
Countess Anna of Nassau (5 November 1563 – 13 June 1588) was a daughter of William the Silent and his second wife, Anna of Saxony.
She was the wife of William Louis, Count of Nassau-Dillenburg.
Princess Anna of Bavaria
Princess Anna of Bavaria( née; Princess Anna- Natascha zu Sayn- Wittgenstein- Berleburg; born 15 March 1978) is a German journalist and author.
A member of the House of Sayn- Wittgenstein- Berleburg by birth, she became a member of the House of Wittelsbach in 2005 through her marriage to Prince Manuel of Bavaria.
Princess Anna of Saxony (1903–1976)
Princess "Anna" Monika Pia of Saxony, Duchess of Saxony (Full German name: "Prinzessin Anna Monika Pia von Sachsen, Herzogin zu Sachsen") (4 May 1903 – 8 February 1976) was the seventh and youngest child of Frederick Augustus III of Saxony and his wife Archduchess Luise of Austria, Princess of Tuscany and a younger sister of both Georg, Crown Prince of Saxony, and Friedrich Christian, Margrave of Meissen.
Princess Mathilde of Saxony (born 1863)
Princess Mathilde of Saxony, Duchess of Saxony (19 March 1863 – 27 March 1933) was the third child and third-eldest daughter of George of Saxony and his wife, Maria Anna of Portugal.
She was an elder sister of the Kingdom of Saxony's last king, Frederick Augustus III of Saxony.
Princess Anna of Montenegro
Princess Anna of Montenegro( 18 August 1873 – 22 April 1971) was the seventh child and sixth daughter of Nicholas I of Montenegro and his wife Milena Vukotić.
Anna of Saxony, Electress of Brandenburg
Anna of Saxony (7 March 1437 – 31 October 1512) was a princess of Saxony by birth and Electress of Brandenburg by marriage.
Prince Johann Georg of Saxony
Prince Johann Georg Pius Karl Leopold Maria Januarius Anacletus of Saxony, Duke of Saxony (10 July 1869 – 24 November 1938) was the sixth child and second-eldest son of George of Saxony and his wife Maria Anna of Portugal and a younger brother of the Kingdom of Saxony's last king, Frederick Augustus III of Saxony.
Johann Georg was a well-known arts expert and an avid art collector.
Princess Anna of Hesse and by Rhine
Princess Anna of Hesse and by Rhine (25 May 1843 – 16 April 1865) was the consort and second wife of Friedrich Franz II, Grand Duke of Mecklenburg-Schwerin.
Anna of Saxony, Landgravine of Hesse
Anna of Saxony (5 June 1420 – 17 September 1462, Spangenberg) was a princess of Saxony and by marriage landgravine of Hesse.

Question: Who is the paternal grandfather of Princess Anna Of Saxony (1903–1976)?