Question: Who is Amalie Adlerberg's stepfather?

Knowledge 1: Amalie Adlerberg
Countess Amalie Maximilianovna Adlerberg (16 June 1808 – 21 June 1888) was an illegitimate daughter of Duchess Therese of Mecklenburg-Strelitz, fathered by Bavarian diplomatMaximilian-Emmanuel Graf von undzu Lerchenfeld aufKöfering und Schönberg (1772–1809).Amalie's mother was an aunt of Empress Alexandra Feodorovna, wife of Tsar Nicholas I.Her mother's husband, Karl Alexander Fürst von Thurn und Taxis (1770–1827), was invited by Napoleon for his new projects, and lived in Paris for years.In his absence, Princess Therese had a passionate affair with Count Maximilian-Emmanuel von Lerchenfeld.After her father,Graf von Lerchenfeld's death on 19 October 1809, Amalie was placed in the care of Therese's "von Sternfeld" relatives in Darmstadt (then in the Grand Duchy of Hesse), and the baby carried their surname after she was born.Amalie von Sternfeld was later brought to Regensburg, closer to Princess Therese and changed her surname to "Stargard".She was finally taken care of by the Lerchenfeld family and lived in their palace in Munich or at the family castle in Köfering near Regensburg.Finally, on 1 August 1823, the Grand Duke of Hesse gave the fifteen-year-old Amalie Stargard permission to carry the surname "von Lerchenfeld", but without rights to use the coat of arms or be listed in the family tree, which was the price for her extramarital birth. [SEP] Knowledge 2: Duchess Therese of Mecklenburg-Strelitz
Duchess Therese Mathilde Amalie of Mecklenburg-Strelitz (5 April 1773 – 12 February 1839) was a member of the House of Mecklenburg-Strelitz and a Duchess of Mecklenburg.Through her marriage to Karl Alexander, 5th Prince of Thurn and Taxis, Therese was also a member of the House of Thurn and Taxis.
Knowledge 1: Amalie Adlerberg
Countess Amalie Maximilianovna Adlerberg (16 June 1808 – 21 June 1888) was an illegitimate daughter of Duchess Therese of Mecklenburg-Strelitz, fathered by Bavarian diplomatMaximilian-Emmanuel Graf von undzu Lerchenfeld aufKöfering und Schönberg (1772–1809).Amalie's mother was an aunt of Empress Alexandra Feodorovna, wife of Tsar Nicholas I.Her mother's husband, Karl Alexander Fürst von Thurn und Taxis (1770–1827), was invited by Napoleon for his new projects, and lived in Paris for years.In his absence, Princess Therese had a passionate affair with Count Maximilian-Emmanuel von Lerchenfeld.After her father,Graf von Lerchenfeld's death on 19 October 1809, Amalie was placed in the care of Therese's "von Sternfeld" relatives in Darmstadt (then in the Grand Duchy of Hesse), and the baby carried their surname after she was born.Amalie von Sternfeld was later brought to Regensburg, closer to Princess Therese and changed her surname to "Stargard".She was finally taken care of by the Lerchenfeld family and lived in their palace in Munich or at the family castle in Köfering near Regensburg.Finally, on 1 August 1823, the Grand Duke of Hesse gave the fifteen-year-old Amalie Stargard permission to carry the surname "von Lerchenfeld", but without rights to use the coat of arms or be listed in the family tree, which was the price for her extramarital birth. [SEP] Knowledge 2: Alexander von Hanstein, Count of Pölzig and Beiersdorf
Maximilian Elisäus Alexander von Hanstein, Count of Pölzig and Beiersdorf( 9 June 1804, Burghaig, Kulmbach – 18 April 1884, Schmölln) was a Thuringian count.He was the stepfather of Prince Albert and grandfather of Hans Poelzig.
Knowledge 1: Amalie Adlerberg
Countess Amalie Maximilianovna Adlerberg (16 June 1808 – 21 June 1888) was an illegitimate daughter of Duchess Therese of Mecklenburg-Strelitz, fathered by Bavarian diplomatMaximilian-Emmanuel Graf von undzu Lerchenfeld aufKöfering und Schönberg (1772–1809).Amalie's mother was an aunt of Empress Alexandra Feodorovna, wife of Tsar Nicholas I.Her mother's husband, Karl Alexander Fürst von Thurn und Taxis (1770–1827), was invited by Napoleon for his new projects, and lived in Paris for years.In his absence, Princess Therese had a passionate affair with Count Maximilian-Emmanuel von Lerchenfeld.After her father,Graf von Lerchenfeld's death on 19 October 1809, Amalie was placed in the care of Therese's "von Sternfeld" relatives in Darmstadt (then in the Grand Duchy of Hesse), and the baby carried their surname after she was born.Amalie von Sternfeld was later brought to Regensburg, closer to Princess Therese and changed her surname to "Stargard".She was finally taken care of by the Lerchenfeld family and lived in their palace in Munich or at the family castle in Köfering near Regensburg.Finally, on 1 August 1823, the Grand Duke of Hesse gave the fifteen-year-old Amalie Stargard permission to carry the surname "von Lerchenfeld", but without rights to use the coat of arms or be listed in the family tree, which was the price for her extramarital birth. [SEP] Knowledge 2: Jerrold Wexler
Jerrold Wexler( June 27, 1924 – November 10, 1992) was a noted American businessman and film producer.He was the brother of cinematographer Haskell Wexler and the stepfather of actress Daryl Hannah.

Answer: Karl Alexander, 5th Prince of Thurn and Taxis