question: Who is Henry Iii, Prince Of Anhalt-Aschersleben's paternal grandfather?
context: [["Bernhard VI, Prince of Anhalt-Bernburg", ["Bernhard VI, Prince of Anhalt- Bernburg( died 2 February 1468) was a German prince of the House of Ascania and ruler of the Principality of Anhalt- Bernburg.", "He was the eldest son of Otto III, Prince of Anhalt- Bernburg, by his first unknown wife."]], ["Henry II, Prince of Anhalt-Aschersleben", ["Henry II, Prince of Anhalt-Aschersleben (1215 \u2013 12 June 1266) was a German prince of the House of Ascania and ruler of the principality of Anhalt-Aschersleben.", "He was the eldest son of Henry I, Count of Anhalt (who was raised to the rank of prince in 1218), by his wife Irmgard, daughter of Hermann I, Landgrave of Thuringia."]], ["Henry IV, Prince of Anhalt-Bernburg", ["Henry IV, Prince of Anhalt- Bernburg( died 7 July 1374) was a German prince of the House of Ascania and ruler of the principality of Anhalt- Bernburg.", "He was the second son of Bernhard III, Prince of Anhalt- Bernburg, by his first wife Agnes, daughter of Rudolf I, Duke of Saxe- Wittenberg."]], ["Otto III, Prince of Anhalt-Bernburg", ["Otto III, Prince of Anhalt- Bernburg( died 27 February 1404) was a German prince of the House of Ascania and ruler of the principality of Anhalt- Bernburg.", "He was the youngest son of Bernhard III, Prince of Anhalt- Bernburg, by his third wife Matilda, daughter of Magnus I, Duke of Brunswick- G\u00f6ttingen."]], ["Bernhard III, Prince of Anhalt-Bernburg", ["Bernhard III, Prince of Anhalt- Bernburg( died 20 August 1348) was a German prince of the House of Ascania and ruler of the principality of Anhalt- Bernburg.", "He was the eldest son of Bernhard II, Prince of Anhalt- Bernburg, by his wife Helene, daughter of Wizlaw II, Prince of R\u00fcgen."]], ["Otto I, Prince of Anhalt-Aschersleben", ["Otto I, Prince of Anhalt- Aschersleben( died 25 June 1304) was a German prince of the House of Ascania and ruler of the principality of Anhalt- Aschersleben.", "He was the eldest son of Henry II, Prince of Anhalt- Aschersleben, by his wife Matilda, daughter of Otto the Child, Duke of Brunswick- L\u00fcneburg.", "Otto was named after his maternal grandfather."]], ["Otto II, Prince of Anhalt-Aschersleben", ["Otto II, Prince of Anhalt- Aschersleben( died 24 July 1315) was a German prince of the House of Ascania and the last ruler of the principality of Anhalt- Aschersleben.", "He was the last child and only son of Otto I, Prince of Anhalt- Aschersleben, by his wife Hedwig, daughter of Henry III the White, Duke of Breslau."]], ["Henry III, Prince of Anhalt-Aschersleben", ["Henry III, Prince of Anhalt-Aschersleben (died 9 November 1307) was a German prince of the House of Ascania and ruler of the principality of Anhalt-Aschersleben.", "He was the youngest son of Henry II, Prince of Anhalt-Aschersleben, by his wife Matilda, daughter of Otto the Child, Duke of Brunswick-L\u00fcneburg."]], ["Otto IV, Prince of Anhalt-Bernburg", ["Otto IV, Prince of Anhalt- Bernburg( died 1 May 1415) was a German prince of the House of Ascania and ruler of the principality of Anhalt- Bernburg.", "He was the youngest son of Otto III, Prince of Anhalt- Bernburg, by his unknown first wife."]], ["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."]]]
supporting_facts: [["Henry III, Prince of Anhalt-Aschersleben", 1], ["Henry II, Prince of Anhalt-Aschersleben", 1]]
evidences: [["Henry III, Prince of Anhalt-Aschersleben", "father", "Henry II, Prince of Anhalt-Aschersleben"], ["Henry II, Prince of Anhalt-Aschersleben", "father", "Henry I, Count of Anhalt"]]
answer: Henry I, Count of Anhalt