Question: Who is Anna Eleonore Of Stolberg-Wernigerode's father-in-law?

Knowledge 1: Anna Eleonore of Stolberg-Wernigerode
Anna Eleonore of Stolberg-Wernigerode (26 March 1651 - 27 January 1690), was a German regent; Princess of Anhalt-Köthen by marriage to Emmanuel, Prince of Anhalt-Köthen, and regent of Anhalt-Köthen during the minority of her son from 1671 until 1690. [SEP] Knowledge 2: Emmanuel, Prince of Anhalt-Köthen
Emmanuel of Anhalt-Köthen (Plötzkau, 6 October 1631 – Köthen, 8 November 1670), was a German prince of the House of Ascania and ruler of the principality of Anhalt-Plötzkau.From 1665, he was ruler of the principality of Anhalt-Köthen.He was the third and youngest son of Augustus, Prince of Anhalt-Plötzkau, by his wife Sibylle, daughter of John George I, Count of Solms-Laubach.
Knowledge 1: Henry Ernest, Count of Stolberg
Henry Ernest, Count of Stolberg( 20 July 1593 in Schwarza – 4 April 1672 in Ilsenburg) was a German nobleman.He was the founder of the older main line of the House of Stolberg.He was the eldest son of Count Christopher II of Stolberg.From 1639 to 1645, Henry Ernst and his younger brother John Martin jointly ruled the County of Stolberg.On 31 May 1645, they divided their inheritance, with Henry Ernest receiving the County of Wernigerode and Hohnsteiner Forest.He moved the residence of his county from Wernigerode to Ilsenburg.On 2 May 1649, he married Anna Elisabeth, a daughter of Count Henry Volrad of Stolberg- Ortenberg.They had two sons, Ernest and Louis Christian, and one daughter, Anna Eleonore, who married Emmanuel, Prince of Anhalt- Köthen in Ilsenburg on 23 March 1670.As there was no primogeniture in Stolberg, his sons jointly inherited the county when Henry Ernest died in 1672. [SEP] Knowledge 2: Henry Ernest of Stolberg-Wernigerode
Henry Ernest of Stolberg- Wernigerode( 7 December 1716, Wernigerode – 24 October 1778, Halberstadt) was a German politician, canon, dean and author of many hymns.He also published some poetry and collections of songs.He was Count of Stolberg- Wernigerode from 1771 until his death.
Knowledge 1: Henry Ernest, Count of Stolberg
Henry Ernest, Count of Stolberg( 20 July 1593 in Schwarza – 4 April 1672 in Ilsenburg) was a German nobleman.He was the founder of the older main line of the House of Stolberg.He was the eldest son of Count Christopher II of Stolberg.From 1639 to 1645, Henry Ernst and his younger brother John Martin jointly ruled the County of Stolberg.On 31 May 1645, they divided their inheritance, with Henry Ernest receiving the County of Wernigerode and Hohnsteiner Forest.He moved the residence of his county from Wernigerode to Ilsenburg.On 2 May 1649, he married Anna Elisabeth, a daughter of Count Henry Volrad of Stolberg- Ortenberg.They had two sons, Ernest and Louis Christian, and one daughter, Anna Eleonore, who married Emmanuel, Prince of Anhalt- Köthen in Ilsenburg on 23 March 1670.As there was no primogeniture in Stolberg, his sons jointly inherited the county when Henry Ernest died in 1672. [SEP] Knowledge 2: Louise of Stolberg-Wernigerode
Countess Louise of Stolberg- Wernigerode( 24 November 1771 at Wernigerode Castle – 8 June 1856 in Groß Krauschen) was abbess of Drübeck Abbey.Louise was a member of the House of Stolberg, from the Harz area.She was the second eldest daughter of Count Christian Frederick of Stolberg- Wernigerode and his wife Auguste Eleonore of Stolberg- Stolberg.She was an older sister of Henry of Stolberg- Wernigerode.From 1797 to 1800, she was abbess of Drübeck Abbey.On 21 December 1807, she left the abbey to marry Moritz Haubold von Schönberg.She moved to his estate in" Groß Krauschen", which is now in Poland and called Gmina Bolesławiec.She died there in 1856.

Answer: Augustus, Prince of Anhalt-Plötzkau