question: When did Magnus, Prince Of Anhalt-Köthen's father die?
context: [["William Louis, Prince of Anhalt-K\u00f6then", ["William Louis of Anhalt- K\u00f6then( 3 August 1638, in K\u00f6then \u2013 13 April 1665, in K\u00f6then), was a German prince of the House of Ascania and ruler of the principality of Anhalt- K\u00f6then.", "He was the second son of Louis I, Prince of Anhalt- K\u00f6then, but second- born son of his second wife Sophie, daughter of Simon VI, Count of Lippe."]], ["Augustus Louis, Prince of Anhalt-K\u00f6then", ["Augustus Louis of Anhalt- K\u00f6then( 9 June 1697 in K\u00f6then \u2013 6 August 1755 in K\u00f6then), was a German prince of the House of Ascania and ruler of the principality of Anhalt- K\u00f6then.", "He was the third( second surviving) son of Emmanuel Lebrecht, Prince of Anhalt- K\u00f6then, by his wife Gisela Agnes of Rath."]], ["Albert VI, Prince of Anhalt-K\u00f6then", ["Albert VI, Prince of Anhalt- K\u00f6then( died 9 January 1475) was a German prince of the House of Ascania and ruler of the principality of Anhalt- K\u00f6then.", "He was the youngest son of Albert IV, Prince of Anhalt- K\u00f6then, but the eldest child of his second wife Elisabeth, daughter of Gebhard XI, Count of Querfurt."]], ["Philip, Prince of Anhalt-K\u00f6then", ["Philip, Prince of Anhalt-K\u00f6then (31 May 1468 \u2013 13 November 1500) was a German prince of the House of Ascania and ruler of the principality of Anhalt-K\u00f6then.", "He was the only son of Albert VI, Prince of Anhalt-K\u00f6then, by his wife Elisabeth, daughter of G\u00fcnther II, Count of Mansfeld."]], ["Adolph I, Prince of Anhalt-K\u00f6then", ["Adolph I, Prince of Anhalt-K\u00f6then (died Zerbst, 28 August 1473), was a German prince of the House of Ascania and ruler of the principality of Anhalt-K\u00f6then.", "He was the eldest son of Albert IV, Prince of Anhalt-K\u00f6then, by his first wife Elisabeth, daughter of Gebhard III, Count of Mansfeld."]], ["Magnus, Prince of Anhalt-K\u00f6then", ["Magnus, Prince of Anhalt-K\u00f6then (1455 \u2013 29 October 1524) was a German prince of the House of Ascania and ruler of the principality of Anhalt-K\u00f6then.", "He was the third (but eldest surviving) son of Adolph I, Prince of Anhalt-K\u00f6then, by his wife Cordula, daughter of Albert III, Count of Lindau-Ruppin."]], ["Augustus Christian Frederick, Duke of Anhalt-K\u00f6then", ["Augustus Christian Frederick of Anhalt-K\u00f6then (K\u00f6then, 18 November 1769 \u2013 Schloss Geuz, 5 May 1812), was a German prince of the House of Ascania, ruler of the principality of Anhalt-K\u00f6then, and from 1806 the first \"Duke of Anhalt-K\u00f6then.\"", "He was the eldest son of Karl George Lebrecht, Prince of Anhalt-K\u00f6then, by his wife Louise Charlotte, daughter of Frederick, Duke of Schleswig-Holstein-Sonderburg-Gl\u00fccksburg."]], ["Waldemar V, Prince of Anhalt-K\u00f6then", ["Waldemar V, Prince of Anhalt- K\u00f6then( died 1436) was a German prince of the House of Ascania and ruler of the principality of Anhalt- K\u00f6then.", "He was the second son of Albert IV, Prince of Anhalt- K\u00f6then, by his first wife Elisabeth, daughter of Gebhard III, Count of Mansfeld."]], ["Emmanuel Lebrecht, Prince of Anhalt-K\u00f6then", ["Emmanuel Lebrecht of Anhalt-K\u00f6then (K\u00f6then, 20 May 1671 \u2013 K\u00f6then, 30 May 1704), was a German prince of the House of Ascania and ruler of the principality of Anhalt-K\u00f6then.", "He was the only child of Emmanuel, Prince of Anhalt-K\u00f6then, by his wife Anna Eleonore, daughter of Henry Ernest, Count of Stolberg."]], ["Anna Eleonore of Stolberg-Wernigerode", ["Anna Eleonore of Stolberg- Wernigerode( 26 March 1651- 27 January 1690), was a German regent; Princess of Anhalt- K\u00f6then by marriage to Emmanuel, Prince of Anhalt- K\u00f6then, and regent of Anhalt- K\u00f6then during the minority of her son from 1671 until 1690."]]]
supporting_facts: [["Magnus, Prince of Anhalt-K\u00f6then", 1], ["Adolph I, Prince of Anhalt-K\u00f6then", 0]]
evidences: [["Magnus, Prince of Anhalt-K\u00f6then", "father", "Adolph I, Prince of Anhalt-K\u00f6then"], ["Adolph I, Prince of Anhalt-K\u00f6then", "date of death", "28 August 1473"]]
answer: 28 August 1473