William Louis, Prince of Anhalt-Harzgerode

From 1660 until 1668, he was the second in line to the principality of Anhalt-Bernburg, until the birth of the first son of his cousin, Prince Victor Amadeus.

In Laubach on 25 July 1671, William Louis married Elisabeth Juliane (b. Kassel, 6 March 1631 – d. Harzgerode, 2 January 1693), daughter of Albert Otto II, Count of Solms-Laubach.

In Frederiksborg near Copenhagen on 20 October 1695 William Louis married for a second time to Sophie Auguste (b. Dillenburg, 28 April 1666 – d. Usingen, 14 January 1733), daughter of Henry, Prince of Nassau-Dillenburg.

This union was also childless, in spite the fact that Sophie Auguste was twenty-three years younger than William Louis.

Without any issue from his marriage, Anhalt-Harzgerode was merged back to the main line of Anhalt-Bernburg on his death, ruled at that time by his cousin Victor Amadeus.