Albert II, Prince of Anhalt-Zerbst
Albert II, Prince of Anhalt- Zerbst( died 17 July 1362) was a German prince of the House of Ascania and ruler of the principality of Anhalt- Zerbst.
He was the third son of Albert I, Prince of Anhalt- Zerbst, but the eldest child born to his second wife Agnes, daughter of Conrad, Margrave of Brandenburg- Stendal.
John Louis I, Prince of Anhalt-Dornburg
John Louis I, Prince of Anhalt-Dornburg (4 May 1656, in Zerbst – 1 November 1704, in Dornburg), was a German prince of the House of Ascania and ruler of the principality of Anhalt-Dornburg.
He was the sixth (but fourth surviving) son of John VI, Prince of Anhalt-Zerbst, by his wife Sophie Auguste, daughter of Frederick III, Duke of Schleswig-Holstein-Gottorp.
Sigismund I, Prince of Anhalt-Dessau
Sigismund I, Prince of Anhalt- Dessau( died Coswig, 19 January 1405), was a German prince of the House of Ascania and ruler of the principality of Anhalt- Zerbst until 1396, when he became the first ruler of the principality of Anhalt- Dessau.
He was the eldest son of John II, Prince of Anhalt- Zerbst, by his wife Elisabeth, daughter of John I, Count of Henneberg- Schleusingen.
Waldemar III, Prince of Anhalt-Zerbst
Waldemar III, Prince of Anhalt- Zerbst( died 1391) was a German prince of the House of Ascania and ruler of the principality of Anhalt- Zerbst.
He was the youngest son of John II, Prince of Anhalt- Zerbst, by his wife Elisabeth, daughter of John I, Count of Henneberg- Schleusingen.
John Louis II, Prince of Anhalt-Zerbst
John Louis II, Prince of Anhalt-Zerbst (23 June 1688, in Dornburg – 5 November 1746, in Zerbst), was a German prince of the House of Ascania and ruler of the principality of Anhalt-Dornburg.
After 1742 he became ruler over the principality of Anhalt-Zerbst .
He was the eldest son of John Louis I, Prince of Anhalt-Dornburg, by his wife Christine Eleonore of Zeutsch.
John II, Prince of Anhalt-Zerbst
John II, Prince of Anhalt- Zerbst( died 11 April 1382) was a German prince of the House of Ascania and ruler of the principality of Anhalt- Zerbst.
He was the youngest son of Albert II, Prince of Anhalt- Zerbst, by his second wife Beatrix, daughter of Rudolf I, Elector of Saxony and Duke of Saxe- Wittemberg.
Waldemar II, Prince of Anhalt-Zerbst
Waldemar II, Prince of Anhalt- Zerbst( died bef. 24 August 1371) was a German prince of the House of Ascania and ruler of the Principality of Anhalt- Zerbst.
He was the eldest child and only son of Waldemar I, Prince of Anhalt- Zerbst by his first wife Elisabeth, daughter of Rudolf I, Elector of Saxony and Duke of Saxe- Wittemberg.
Albert III, Prince of Anhalt-Zerbst
Albert III, Prince of Anhalt- Zerbst( died ca. 1 August 1359) was a German prince of the House of Ascania and ruler of the principality of Anhalt- Zerbst.
He was the eldest son of Albert II, Prince of Anhalt- Zerbst, by his second wife Beatrix, daughter of Rudolf I, Elector of Saxony and Duke of Saxe- Wittemberg.
Albert IV, Prince of Anhalt-Köthen
Albert IV, Prince of Anhalt- Köthen( d. Coswig, 24 November 1423), was a German prince of the House of Ascania and ruler of the principality of Anhalt- Zerbst until 1396, when he became the first ruler of the principality of Anhalt- Köthen.
He was the second son of John II, Prince of Anhalt- Zerbst, by his wife Elisabeth, daughter of John I, Count of Henneberg- Schleusingen.
Waldemar I, Prince of Anhalt-Zerbst
Waldemar I, Prince of Anhalt- Zerbst( died 7 January 1368) was a German prince of the House of Ascania and ruler of the principality of Anhalt- Zerbst.
He was the youngest son of Albert I, Prince of Anhalt- Zerbst, by his second wife Agnes, daughter of Conrad, Margrave of Brandenburg- Stendal.

Question: Who is the paternal grandfather of John Louis Ii, Prince Of Anhalt-Zerbst?
Answer: John VI, Prince of Anhalt-Zerbst