Heinrich LXIII, Prince Reuss of Köstritz
Prince Heinrich LXIII Reuss of Köstritz( 18 June 1786, Berlin – 27 September 1841, Stonsdorf) was a member of the House of Reuss.
Princess Magdalena Reuss of Köstritz
Princess Magdalena Reuss of Köstritz (20 August 1920 - 10 October 2009) was the wife of Prince Hubertus of Prussia.
She was a member of the House of Reuss.
Prince Heinrich VIII Reuss of Köstritz
Prince Heinrich VIII Reuss of Köstritz( born 30 August 1944) is a son of Prince Heinrich I Reuss of Köstritz, and is a member of the House of Reuss.
Marian Shields Robinson
Marian Lois Robinson( née Shields; born July 29, 1937) is the mother of Michelle Obama, former First Lady of the United States, and Craig Robinson, a basketball executive, and the mother- in- law of former U.S. President Barack Obama.
Heinrich VII, Prince Reuss of Köstritz
Heinrich VII, Prince Reuss of Köstritz( 14 July 1825, Klipphausen – 2 May 1906, Trzebiechów) was a German diplomat.
Prince Heinrich I Reuss of Köstritz
Prince Heinrich I Reuss of Köstritz( 8 October 191010 March 1982) was son of Prince Heinrich XXXIV Reuss of Köstritz and member of the House of Reuss.
Prince Hubertus of Prussia
Prince Hubertus of Prussia (Hubertus Karl Wilhelm; 30 September 1909 – 8 April 1950) was the third son of Crown Prince Wilhelm of Germany and Duchess Cecilie of Mecklenburg-Schwerin.
Priscilla Pointer
Priscilla Marie Pointer( born May 18, 1924) is an American stage, film and television character actress.
She began her career in the theater, including productions on Broadway.
Later, Pointer moved to Hollywood to act in films and on television.
She is the mother of Amy Irving, therefore making her the former mother- in- law of filmmakers Steven Spielberg and Bruno Barreto and the mother- in- law of documentary filmmaker Kenneth Bowser, Jr.
Prince Heinrich XXXIII Reuss of Köstritz
Prince Heinrich XXXIII Reuss of Köstritz (26 July 1879 – 15 November 1942) was the son of Prince Heinrich VII Reuss of Köstritz and his wife Princess Marie Alexandrine of Saxe-Weimar-Eisenach.
Heinrich XXIV, Prince Reuss of Greiz
Heinrich XXIV, Prince Reuss of Greiz( 20 March 187813 October 1927) was the last reigning Prince Reuss of Greiz from 1902 to 1918.
Then he became Head of the House Reuss of Greiz which became extinct at his death in 1927.

Question: Who is Princess Magdalena Reuss Of Köstritz's mother-in-law?