Frederica Louisa of Hesse-Darmstadt (; 16 October 1751 – 25 February 1805) was Queen of Prussia as the second spouse of King Frederick William II. Life Frederica Louisa was the daughter of Louis IX, Landgrave of Hesse-Darmstadt, and Countess Palatine Caroline of Zweibrücken. She was born in Prenzlau. She was the sister of Grand Duchess Louise of Saxe-Weimar-Eisenach, as well as Grand Duke Louis I of Hesse. Marriage Frederica Louisa was selected to marry Frederick William immediately after his divorce from Elisabeth Christine of Brunswick-Lüneburg, after Margravine Philippine of Brandenburg-Schwedt and Sophia Albertina of Sweden had been suggested. Her mother was highly admired by Frederick the Great. The wedding was performed on 14 July 1769 at the Charlottenburg Palace. Frederica Louisa was described as solid and sensible and with an agreeable conversation, though lacking of beauty and any particular intellectual abilities. Wraxall said of her: "She is an amiable, virtuous, and pleasing woman, possessing neither the personal attractions, nor the graces of her predecessor, but exempt from her errors and defects. She is of the middle size, her countenance agreeable, though not handsome, her manners easy and engaging, her character estimable and formed to excite universal respect." Frederick William called her his "Hessische Lieschen", or "Hessian Lizzie", but did not show her much appreciation or attention and neglected her to indulge in his own pleasures. The marriage was not happy, and Fredrick had numerous lovers, most notably Wilhelmine von Lichtenau, with whom he had a relationship from the same year he married Frederica Louisa until his death. Her position was somewhat difficult because of the demise of the first wife of her spouse, and king Frederick the Great never showed her much favor and did in fact make a point of refusing her the favors and privileges he had formerly given her predecessor. She mainly resided in Potsdam, "in the most monotonous and wearisome seclusion, neglected by her husband, slighted by the King, and seldom allowed even the diversion of a visit to Berlin". Reportedly, she did not give much attention to her children and was blamed for having a part in their lack of education: "Frederic William III. received the very worst of educations; so beyond all measure bad as only that of a crown Prince can be. His father troubled himself more about his illegitimate than his legitimate children. They were left to their mother. She, constantly embroiled