Marie Émilie de Joly de Choin
Marie Émilie Thérèse de Joly, "Mademoiselle de Choin" (2 August 1670 – 1732) was a French lady-in-waiting, the lover and later the morganatic spouse of Louis, Dauphin of France.
As a morganatic spouse, she was not styled Dauphine of France.
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.
Marie Adélaïde of Savoy
Marie Adélaïde of Savoy, Princess of Savoy( 6 December 1685 – 12 February 1712) was the wife of Louis, Dauphin of France, Duke of Burgundy.
She was the eldest daughter of Duke Victor Amadeus II of Savoy and of Anne Marie d'Orléans.
Her betrothal to the Duke of Burgundy in June 1696 was part of the Treaty of Turin, signed on 29 August 1696.
She was the mother of the future King Louis XV of France.
Styled as Duchess of Burgundy after her marriage, she became Dauphine of France upon the death of her father- in- law, Le Grand Dauphin, in 1711.
She died of measles in 1712, followed by her husband a week later.
Louis, Duke of Burgundy
Louis, Duke of Burgundy and later Dauphin of France( 16 August 1682 – 18 February 1712) was the eldest son of Louis, Grand Dauphin, and father of Louis XV, and briefly heir- apparent to the throne from his father's death in April 1711 to his own death 10 months later.
Until he became the official Dauphin of France upon his father's death in 1711, he was known as Le Petit Dauphin to distinguish him from his father, who was known as" le Grand Dauphin".
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
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.
Margaret Stewart, Dauphine of France
Margaret of Scotland( 25 December 1424 – 16 August 1445) was a Princess of Scotland and the Dauphine of France.
She was the firstborn child of King James I of Scotland and Queen Joan Beaufort.
She married the eldest son of the king of France, Louis, Dauphin of France, at eleven years old.
Their marriage was unhappy, and she died childless at age 20, apparently of a fever.
Louis, Dauphin of France (son of Louis XV)
Louis, Dauphin of France (4 September 1729 – 20 December 1765) was the elder and only surviving son of King Louis XV of France and his wife, Queen Marie Leszczyńska.
He had a younger brother, Philippe, who died as a toddler.
As a son of the king, Louis was a "fils de France".
As heir apparent, he became Dauphin of France.
However, he died before ascending to the throne.
Three of his sons became kings of France:
Louis XVI (reign: 1774–1792), Louis XVIII (reign: 1814–1815; 1815–1824) and Charles X (reign: 1824–1830).
Marie Leszczyńska
Maria Karolina Zofia Felicja Leszczyńska (23 June 1703 – 24 June 1768), also known as Marie Leczinska , was a Polish princess and French queen consort.
The daughter of King Stanisław Leszczyński—Stanislaus I of Poland (later Duke of Lorraine)–and Catherine Opalińska, she married King Louis XV of France and became queen consort of France.
She served in that role for 42 years from 1725 until her death in 1768, the longest service of any queen of France, and was popular due to her generosity and piety.
She was the grandmother of Louis XVI, Louis XVIII and Charles X of France.
Maria Teresa Rafaela of Spain
Maria Teresa Rafaela of Spain
( María Teresa Antonia Rafaela; 11 June 1726 – 22 July 1746) was an" Infanta of Spain" by birth and Dauphine of France by marriage to Louis, Dauphin of France, son of Louis XV of France.
She died aged 20, three days after giving birth to a daughter who died in 1748.

Question: Who is the maternal grandmother of Louis, Dauphin Of France (Son Of Louis Xv)?
Answer: Catherine Opalińska