On 11 March 1916 in Berlin, Marie-Auguste married Prince Joachim of Prussia, the youngest son of German Emperor Wilhelm II, by his first wife, Augusta Victoria of Schleswig-Holstein.

[2] Marie-Auguste and Joachim, who was Wilhelm's last unmarried child, had been officially engaged since 14 October of the previous year.

[3] The wedding was celebrated at Bellevue Palace, and was attended by Joachim's father and mother Empress Augusta Viktoria, the Duke and Duchess of Anhalt, as well as other relatives.

[4] The couple had one son, Prince Karl Franz Josef Wilhelm Friedrich Eduard Paul (15 December 1916 in Potsdam – 23 January 1975 in Arica, Chile).

[5] Their grandson, Prince Franz Wilhelm, married Maria Vladimirovna of Russia, a pretender to the Imperial Russian throne.

[8] After Joachim's suicide, Marie-Auguste's son Karl Franz was taken into the custody of his paternal uncle Prince Eitel Friedrich.

[12][13] In 1980, Princess Marie-Auguste legally adopted the businessman Hans Lichtenberg, who subsequently took the name Frédéric Prinz von Anhalt.