Landgravine of Hesse-Kassel

Philippine was very early on chosen by her aunt, Queen Louisa Ulrika of Sweden, as the future queen of Sweden; her mother was the queen's favourite, and Louisa Ulrika wished Philippine to marry her son, Gustav (later Gustav III of Sweden).^[2] These plans were broken however when Gustav was married to Sophia Magdalena of Denmark in 1766. Louisa Ulrika then wanted Philippine to marry her younger son, Charles, but instead, Gustav decided that his brother should marry Hedwig Elizabeth Charlotte of Holstein-Gottorp.^[2]

On 10 January 1773, Philippine married Frederick II, Landgrave of Hesse-Kassel, who was 25 years older, in Berlin.^[1] She was his second wife; his first wife, Princess Mary of Great Britain, died the previous year. Philippine thus became stepmother to Frederick's three surviving sons: William, Charles, and Frederick. Philippine would not produce any legitimate children herself however.

During her marriage, Philippine led a widely independent life, even setting up her own court. On 1 March 1777, she gave birth to an illegitimate son, Georg Philippson, fathered by the later Württemberg statesman Georg Ernst Levin von Wintzingerode. She also helped reconcile her husband with his children from his first marriage, from whom he had been estranged since 1754.

Later life

Frederick died on 31 October 1785. As a widow, she lived first in Hanau. After the invasion of the French revolutionary army she moved to Berlin. King Frederick William II donated a modern palace to her (Behrenstraße 66). In 1794, she married Count von Wintzingerode secretly with knowledge and approval of the king. Philippine died on 1 May 1800. She is buried in Berlin Cathedral. The only heir was her second husband Wintzingerode. ^[1]