Henriette Maria of Brandenburg-Schwedt (2 March 1702 probably in Berlin – 7 May 1782 in Köpenick), was a granddaughter of the "Great Elector" Frederick William of Brandenburg.
She was the daughter of Philip William, Margrave of Brandenburg-Schwedt (1669-1711), the eldest son of the elector's second marriage with Sophia Dorothea of Schleswig-Holstein-Sonderburg-Glücksburg.
The marriage produced two children: Henrietta Maria died on 7 May 1782, aged 80, and was buried in the crypt below the church of Köpenick Palace, where she had spent her years of widowhood.
Her daughter arranged for a black marble plate in the crypt to commemorate her mother.
In the 1960s, the coffin was cremated, with permission of the Hohenzollern family, and the formerly open-ended crypt (as described by Fontane) was walled off.