question: Where was the husband of Joanna Elisabeth Of Holstein-Gottorp born?
context: [["Christian August, Prince of Anhalt-Zerbst", ["Christian August, Prince of Anhalt-Zerbst (29 November 1690, in Dornburg \u2013 16 March 1747, in Zerbst) was a German prince of the House of Ascania.", "He was a ruler of the Principality of Anhalt-Dornburg, then, from 1742, a ruler of the entire Principality of Anhalt-Zerbst.", "He was also a Prussian \"Generalfeldmarschall\", but is best known for being the father of Catherine the Great of Russia."]], ["Adolf, Duke of Holstein-Gottorp", ["Adolf of Denmark or Adolf of Holstein-Gottorp (25 January 1526 \u2013 1 October 1586) was the first Duke of Holstein-Gottorp from the line of Holstein-Gottorp of the House of Oldenburg.", "He was the third son of King Frederick I of Denmark and his second wife, Sophie of Pomerania.", "King Frederick I had his son educated by Philip I, Landgrave of Hesse.", "He spent four years at the Landgrave's castle in Kassel.", "In 1544, Adolf, his brother Johann, and their half-brother King Christian III of Denmark, divided the duchies of Schleswig and Holstein.", "The areas were divided according to approximately equal tax proceeds.", "Adolf, as the youngest, was entitled the first choice.", "Since he selected the part with the castle Gottorp, the line of the house Oldenburg created by him was called \"Schleswig-Holstein-Gottorp\"."]], ["Duchess Marie Elisabeth of Saxony", ["Duchess Marie Elisabeth of Saxony (22 November 1610 \u2013 24 October 1684) was duchess consort of Holstein-Gottorp as the spouse of Duke Friedrich III of Holstein-Gottorp."]], ["Christian August of Holstein-Gottorp, Prince of Eutin", ["Christian August of Holstein-Gottorp-Eutin (11 January 1673 \u2013 24 April 1726) was a cadet of the reigning ducal House of Holstein-Gottorp who became prince of Eutin, prince-bishop of L\u00fcbeck and regent of the Duchy of Holstein-Gottorp.", "He was the father of Adolf Frederick, King of Sweden, and the maternal grandfather of Catherine the Great, Empress of Russia."]], ["Augusta Marie of Holstein-Gottorp", ["Augusta Marie of Holstein- Gottorp( 1649 \u2013 1728) was a German noblewoman.", "She was the daughter of Frederick III, Duke of Holstein- Gottorp and Duchess Marie Elisabeth of Saxony.", "Through her daughter Albertine Frederica, she is the great- grandmother of Catherine II and great- great- grandmother of Paul I of Russia.", "She married Frederick VII, Margrave of Baden- Durlach on 15 May 1670 in Husum.", "They had the following children:"]], ["John Adolf, Duke of Holstein-Gottorp", ["Johann Adolf of Holstein- Gottorp( 27 February 1575 \u2013 31 March 1616) was a Duke of Holstein- Gottorp."]], ["Christine of Hesse", ["Christine of Hesse (29 June 1543 \u2013 13 May 1604) was Duchess consort of Holstein-Gottorp as the spouse of Duke Adolf of Holstein-Gottorp.", "She exerted some political influence as a widow after 1586."]], ["Joanna Elisabeth of Holstein-Gottorp", ["Johanna Elisabeth of Holstein-Gottorp (24 October 1712 \u2013 30 May 1760) was a German regent, Princess of Anhalt-Zerbst by marriage to Christian August, Prince of Anhalt-Zerbst, and regent of Anhalt-Zerbst from 1747 to 1752 for her minor son, Frederick Augustus.", "She is best known as the mother of Catherine the Great of Russia.", "She was born at Gottorp, the daughter of Christian August, Duke of Holstein-Gottorp and Albertina Frederica of Baden-Durlach."]], ["Christopher of Baden-Durlach", ["Christopher of Baden- Durlach( 9 October 1684, Karlsburg Castle, Durlach \u2013 2 May 1723, Karlsruhe) was Prince and( titular) Margrave of Baden- Durlach.", "Christopher was the son of Margrave Frederick VII Magnus of Baden- Durlach and Augusta Marie of Holstein- Gottorp( born February 6, 1649 \u2013 \u2020 April 25, 1728), daughter of the Duke Frederick III of Holstein- Gottorp.", "He was the brother of the ruling Margrave Charles III William, who reigned from 1709 till 1738."]], ["Frederick II, Duke of Holstein-Gottorp", ["Frederick II, Duke of Holstein- Gottorp( 21 April 1568 \u2013 15 June 1587) was a Danish- German nobleman.", "He was the eldest son of Duke Adolf of Holstein- Gottorp and his wife, Christine of Hesse( 1543- 1604).", "He inherited the ducal share of rule in the royal Danish- ducal condominium of the duchies of Holstein and of Schleswig when his father died in 1586, and died only a year later."]]]
supporting_facts: [["Joanna Elisabeth of Holstein-Gottorp", 0], ["Christian August, Prince of Anhalt-Zerbst", 0]]
evidences: [["Johanna Elisabeth of Holstein-Gottorp", "spouse", "Christian August, Prince of Anhalt-Zerbst"], ["Christian August", "place of birth", "Dornburg"]]
answer: Dornburg