Countess Palatine Hedwig Elisabeth of Neuburg
Hedwig Elisabeth of Neuburg (Hedwig Elisabeth Amelia; 18 July 1673 – 10 August 1722) was a Polish princess by marriage to James Louis Sobieski.
She was the daughter of Philip William, Duke of Neuburg, Berg and Jülich, Elector Palatine of Neuburg, and Landgravine Elisabeth Amalie of Hesse-Darmstadt.
She was the grandmother of Charles Edward Stuart, the "Young Pretender".
Aleksander Kazimierz Sapieha
Aleksander Kazimierz Sapieha( 13 May 1624 – 22 May 1671) was a Polish nobleman.
He became bishop of Samogitia in 1660 and of Vilnius in 1667.
After the abdication of Jan Kazimierz, he initially supported the candidacy of Philip William, Elector Palatine, the son-in- law of Sigismund III Vasa, but later supported the successful election of Michał Korybut Wiśniowiecki.
Magdalene of Bavaria
Magdalene of Bavaria (4 July 1587 – 25 September 1628) was a princess member of the House of Wittelsbach by birth and Countess Palatine of Neuburg and Duchess of Jülich-Berg by marriage.
She was born in Munich, Bavaria, the tenth and youngest child of William V, Duke of Bavaria and Renata of Lorraine.
Tjuyu
Tjuyu( sometimes transliterated as Thuya or Thuyu) was an Egyptian noblewoman and the mother of queen Tiye, and the wife of Yuya.
She is the grandmother of Akhenaten, and great grandmother of Tutankhamun.
Hubba bint Hulail
Hubba bint Hulail was the grandmother of Hashim ibn' Abd Manaf, thus the great- great- great- grandmother of the Islamic" Nabī"( Prophet) Muhammad ibn Abdullah.
Phil Dudley
Philip William Dudley( born 17 February 1959) is a former English footballer who played as a right- back.
Philip William, Elector Palatine
Philip William of Neuburg, Elector Palatine  (24 November 1615 – 2 September 1690) was Count Palatine of Neuburg from 1653 to 1690, Duke of Jülich and Berg from 1653 to 1679 and Elector of the Palatinate from 1685 to 1690.
He was the son of Wolfgang Wilhelm, Count Palatine of Neuburg and Magdalene of Bavaria.
Mona Hopton Bell
Mona Hopton Bell( 1867- 1940) was a British artist, best known for her portraits of civic figures.
She was the grandmother of the painter Jean H. Bell.
Kaoru Hatoyama
After the elections of 2009, she became more widely known as the grandmother of Prime Minister Yukio Hatoyama and his politician brother Kunio Hatoyama.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.

Question: Who is the maternal grandmother of Philip William, Elector Palatine?
Answer: Renata of Lorraine