Georg Ludwig von Maurer
Georg Ludwig Maurer, since 1831 Georg Ludwig von Maurer (2 November 1790 – 9 May 1872) was a German statesman and legal historian from the Electoral Palatinate.
George Albert I, Count of Erbach-Schönberg
George Albert I, Count of Erbach- Schönberg( 16 December 1597 – 25 November 1647), was a German prince member of the House of Erbach and ruler over Schönberg, Seeheim, Reichenberg, Fürstenau and since 1643 over all the Erbach family lands.
Born in Erbach, he was the fourth child and second( but eldest surviving) son of George III, Count of Erbach-Breuberg and his fourth wife Maria, a daughter of Count Albert X of Barby- Mühlingen.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Georg Ludwig von Bar
Georg Ludwig von Bar( 6 January 1701- 6 August 1767) was a German, writer and translator.
Franz, Count of Erbach-Erbach
Franz Graf zu Erbach- Erbach( 29 October 1754 – 8 March 1823) was a German nobleman and art collector.
Countess Sophia Albertine of Erbach-Erbach
Sophia Albertine, Countess of Erbach- Erbach( 30 July 1683, in Erbach – 4 September 1742, in Eisfeld), was Countess of Erbach- Erbach by birth and by marriage Duchess of Saxe- Hildburghausen.
From 1724 to 1728, she was Regent of this Thuringian state.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
Georg Ludwig Hartig
Georg Ludwig Hartig( September 2, 1764 – February 2, 1837) was a German forester.
Kaya Alp
Kaya Alp was, according to Ottoman tradition, the son of Kızıl Buğa and the father of Suleyman Shah, who was, in turn, the grandfather of Ertuğrul, and the great grandfather of the Ottoman Empire founder, Osman I.
George Louis I, Count of Erbach-Erbach
George Louis I, Count of Erbach- Erbach( 8 May 1643 – 30 April 1693), was a German prince member of the House of Erbach and ruler over Erbach, Freienstein, Wildenstein, Michelstadt and Breuberg.
Born in Fürstenau, he was the fifth child and third( but second surviving) son of George Albert I, Count of Erbach-Schönberg and his third wife Elisabeth Dorothea, a daughter of George Frederick II, Count of Hohenlohe- Waldenburg in Schillingsfürst.

Question: Who is George Louis I, Count Of Erbach-Erbach's paternal grandfather?
Answer: George III, Count of Erbach-Breuberg