John II, Duke of Lorraine
John II of Anjou( Nancy, August 2, 1426 – December 16, 1470, Barcelona) was Duke of Lorraine from 1453 to his death.
He was the son of René of Anjou and Isabella, Duchess of Lorraine.
Richard Wesley, 1st Baron Mornington
Richard Colley Wesley, 1st Baron Mornington (– 31 January 1758) was an Irish peer, best remembered as the grandfather of Arthur Wellesley, 1st Duke of Wellington.
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.
Thomas Howard, 2nd Duke of Norfolk
Thomas Howard, 2nd Duke of Norfolk( 144321 May 1524), styled Earl of Surrey from 1483 to 1485 and again from 1489 to 1514, was an English nobleman and politician.
He was the eldest son of John Howard, 1st Duke of Norfolk, by his first wife, Catharina de Moleyns.
The Duke was the grandfather of both Queen Anne Boleyn and Queen Catherine Howard and the great grandfather of Queen Elizabeth I.
He served four monarchs as a soldier and statesman.
Kaya Alp
Kaya Alp was, according to Ottoman tradition, the son of Kızıl Buğa and the father of Suleyman Shah, who was, in turn, the grandfather of Ertuğrul, and the great grandfather of the Ottoman Empire founder, Osman I.
Philippe, Duke of Anjou
Philippe of France, Duke of Anjou (30 August 1730 – 7 April 1733) was a French prince and the second son of king Louis XV of France and Marie Leszczyńska.
He was styled Duke of Anjou from birth.
Fulk II, Count of Anjou
Fulk II of Anjou( c. 905 — 960), called(" the Good") was Count of Anjou from 942 to his death.
Prince Philippe, Duke of Orléans (1869–1926)
Philippe, Duke of Orléans( Prince Louis Philippe Robert d' Orléans; 6 February 1869 – 28 March 1926) was the Orléanist claimant to the throne of France from 1894 to 1926.
Gazo Chinard
Gazo Chinard( 1230 – 1294) was an Italian noble lord, brother or son of Philippe Chinard and vassal of Manfred of Sicily and Charles of Anjou.
After the assassination of Philippe Chinard by Michael II of Epirus, Gazo enraged by the act, handed over the territories to Charles of Anjou, who in return appointed him as captain general of Corfu.
The same year as Charles' envoy, he tried to persuade local noblemen and commanders in Albania to surrender Manfred's domains in Albania to Charles of Anjou, but they refused to do so.
In 1272, when Charles of Anjou proclaimed the Kingdom of Albania, he appointed Gazo Chinard as his Vicar- General.
In 1273 he was replaced by a French governor.
In 1274 he was in command of a fleet in Ischia.
In 1278 he was one of Charles' vassals who was ordered to provide ships for his planned crusade.
In 1279 he was the castellan of Bari and later on the commander of the whole fleet in Abruzzo and Apulia.
In 1282 he participated in the attack on Sicily in an effort by Charles to recapture the island following the Sicilian Vespers, but with no success.
He was removed definitively from command in 1283, on account of old age and he is not mentioned again in the sources.
Philippe, Chevalier de Lorraine
Philippe of Lorraine( 1643 – 8 December 1702), known as the Chevalier de Lorraine, was a French nobleman and member of the House of Guise, cadet of the Ducal House of Lorraine.
He was the renowned lover of Philippe I, Duke of Orléans, brother of Louis XIV.

Question: Who is Philippe, Duke Of Anjou's maternal grandfather?
Answer: Stanisław Leszczyński