Christine of Saxony
Christine of Saxony (25 December 1505 – 15 April 1549) was a German noble, landgravine of Hesse.
She was the regent of Hesse in 1547-1549.
She was the daughter of George the Bearded, Duke of Saxony and Barbara Jagiellon.
On 11 December 1523 in Kassel, she married Landgrave Philip I, Landgrave of Hesse.
The marriage was arranged to forge an alliance between Hesse and Saxony and was unhappy; Philip claimed to be disgusted by her and only shared her bed by duty.
They had ten children.
Whilst married to Christine, Philip practised bigamy and had another nine children with his other (morganatic) wife, Margarethe von der Saale; in 1540, Christine gave her consent to her husband's bigamy with his lover because of her view upon him as her sovereign.
Margarethe von der Saale, however, was never seen at court.
During Philip's absence and captivity in 1547-49, Christine was regent jointly with her oldest son.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Adelaide of Hesse
Adelaide of Hesse( after 1323 – after May 26, 1371) was a daughter of Henry II, Landgrave of Hesse, and his wife Elisabeth of Thuringia, daughter of Frederick I, margrave of Meissen.
Adelaide was a member of the House of Hesse.
Elisabeth of the Palatinate
Elisabeth of the Palatinate( 26 December 1618 – 11 February 1680), also known as Elisabeth of Bohemia, Princess Elisabeth of the Palatinate, or Princess- Abbess of Herford Abbey, was the eldest daughter of Frederick V, Elector Palatine( who was briefly King of Bohemia), and Elizabeth Stuart.
Elisabeth of the Palatinate is a philosopher best known for her correspondence with René Descartes.
She was critical of Descartes' dualistic metaphysics and her work anticipated the metaphysical concerns of later philosophers.
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.
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".
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.
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.
Elisabeth of Hesse, Electress Palatine
Elisabeth of Hesse (13 February 1539 – 14 March 1582) was a German noblewoman.
She was a daughter of Philip I, Landgrave of Hesse and Christine of Saxony, daughter of George, Duke of Saxony.
On 8 July 1560 she married Louis VI, Elector Palatine.
They had the following children:

Question: Who is Elisabeth Of Hesse, Electress Palatine's maternal grandmother?
Answer: Barbara Jagiellon