question: Who is the paternal grandfather of John Louis Ii, Prince Of Anhalt-Zerbst?
context: [["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 \u2013 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 \u2013 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-K\u00f6then", ["Albert IV, Prince of Anhalt- K\u00f6then( 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- K\u00f6then.", "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."]]]
supporting_facts: [["John Louis II, Prince of Anhalt-Zerbst", 2], ["John Louis I, Prince of Anhalt-Dornburg", 1]]
evidences: [["John Louis II, Prince of Anhalt-Zerbst", "father", "John Louis I, Prince of Anhalt-Dornburg"], ["John Louis I, Prince of Anhalt-Dornburg", "father", "John VI, Prince of Anhalt-Zerbst"]]
answer: John VI, Prince of Anhalt-Zerbst