Princess Friederike Luise of Prussia
Princess Friederike Luise of Prussia( 29 August 1714 – 4 February 1784) was a daughter of Frederick William I of Prussia and Sophia Dorothea of Hanover and Margravine of Brandenburg- Ansbach.
Anna Amalia, Abbess of Quedlinburg
Princess Anna Amalia of Prussia (9 November 1723 – 30 March 1787) was Princess-Abbess of Quedlinburg.
She was one of ten surviving children of King Frederick William I of Prussia and Sophia Dorothea of Hanover.
Princess Caroline-Mathilde of Denmark
Princess Caroline- Mathilde of Denmark( 27 April 1912 – 12 December 1995) was a daughter of Prince Harald of Denmark and granddaughter of King Frederick VIII of Denmark.
As the wife of Knud, Hereditary Prince of Denmark, she became Hereditary Princess of Denmark.
Dorothea of Brunswick-Lüneburg
Dorothea of Brunswick-Lüneburg (1 January 1570 – 15 August 1649) was a daughter of Duke William "the younger" of Brunswick-Lüneburg and his wife, Dorothea of Denmark, Duchess of Brunswick-Lüneburg.
She married Count Palatine Charles I of Zweibrücken-Birkenfeld.
They had four children:
Maria of Mecklenburg-Schwerin
Marie of Mecklenburg, born sometime between 1363 and 1367, but probably by 1365, dead after 13 May 1402, was a duchess of Pomerania.
She was the daughter of Duke Henry III, Duke of Mecklenburg( death 1383) and the Danish princess Ingeborg of Denmark, Duchess of Mecklenburg( death 1370), was Duchess of Pomerania.
Princess Charlotte of Prussia (1831–1855)
Princess Charlotte of Prussia( 21 June 1831 – 30 March 1855), was by birth a Princess of Prussia and member of the House of Hohenzollern and by marriage Hereditary Princess of Saxe- Meiningen.
She was the eldest child and daughter of Prince Albert of Prussia( younger son of Frederick William III of Prussia and Louise of Mecklenburg- Strelitz) and his first wife Princess Marianne of the Netherlands( daughter of William I of the Netherlands and Wilhelmine of Prussia).
Margaret of Denmark, Queen of Scotland
Margaret of Denmark( 23 June 1456 – 14 July 1486) was Queen of Scotland from 1469 to 1486 by marriage to King James III.
She was the daughter of Christian I, King of Denmark, Norway and Sweden, and Dorothea of Brandenburg.
Princess Sophia Dorothea of Prussia
Princess Sophia Dorothea of Prussia  (25 January 1719 – 13 November 1765) was the ninth child and fifth daughter of Frederick William I of Prussia and Sophia Dorothea of Hanover.
By marriage, she was a Margravine of Brandenburg-Schwedt.
Anna of Brandenburg
Anna of Brandenburg (27 August 1487 – 3 May 1514) was a German noblewoman.
Margravine Anna was the daughter of John Cicero, Elector of Brandenburg and Margaret of Thuringia.
She was born in Berlin, Brandenburg, and died in Kiel, Holstein.
Dorothea of Denmark, Duchess of Prussia
Dorothea of Denmark (1 August 1504 – 11 April 1547), was a Duchess of Prussia by marriage to Duke Albert, Duke of Prussia.
She was the daughter of King Frederick I of Denmark and Anna of Brandenburg.

Question: Where did Dorothea Of Denmark, Duchess Of Prussia's mother die?
Answer: Kiel