Who married Leopold, Prince of Anhalt-Köthen?

Leopold of Anhalt-Köthen (29 November 1694 – 19 November 1728) was a German prince of the House of Ascania and ruler of the principality of Anhalt-Köthen. Today, he is best remembered for employing Johann Sebastian Bach as his Kapellmeister between 1717 and 1723.

He was born at Köthen, the second (but eldest surviving) son of Emmanuel Lebrecht, Prince of Anhalt-Köthen, by his wife Gisela Agnes of Rath.

Frederica Henriette of Anhalt-Bernburg (24 January 1702–4 April 1723) was a member of the House of Ascania and Princess of Anhalt-Bernburg by birth and a Princess of Anhalt-Köthen by marriage.