René of Savoy
René of Savoy( 1473 – 31 March 1525) was a French nobleman and soldier.
He was count of Villars( 1497) and of Tende( 1501).
Known as" the Great Bastard of Savoy", he was the illegitimate son of Philip II, Duke of Savoy and Libera Portoneri- this made him the originator of the Savoie- Villars( or Savoie- Tende) branch of the House of Savoy.
Cecile of Baux
Cecile of Baux( 1230 – 1275), was a Countess Consort of Savoy; married in 1244 to Amadeus IV, Count of Savoy.
She was the daughter of Barral of Baux and his wife, Sibylle d'Anduze.
She was the Regent of Savoy during the minority of her son, Boniface, Count of Savoy, from 1253 until 1259.
Thomas III of Piedmont
Count Thomas III( c. 1246 – 16 May 1282), called" Thomas of Savoy" or" de Savoie", was the lord of Piedmont and a claimant to the county of Savoy from 1268.
He was the eldest son of Thomas II of Savoy and Beatrice di Fieschi, niece of Pope Innocent IV.
Upon the death of his father, Thomas became Count in his paternal estates in Piedmont.
When his first cousin Boniface, Count of Savoy died in 1263, the 15- year- old Thomas regarded himself as the successor of the deceased, and claimed the county and the headship of the house.
However, his late father's younger brother Peter II, Count of Savoy, a sonless nobleman who had resided in England for much of his life, was recognized as count.
After Peter's death in 1268, Thomas continued his claim although Philip of Savoy, archbishop of Lyon, the youngest surviving brother of his father and also sonless, succeeded in the county and was recognized.
Thomas III, as he was the eldest son and heir of Thomas II, felt an injustice in being surpassed by younger brothers of his father, and claimed unsuccessfully Savoy from his uncles.
Thomas III married in 1274 to Guia of Burgundy, the stepdaughter of his uncle Philip I of Savoy and they had five children: Philip and Thomas were in dispute much of their reigns 1268 – 82.
Thomas' marriage was a rather unsuccessful attempt to patch up things and get Philip to recognize hims as the successor in Savoy, which would have belonged to Thomas, him being the eldest son of Thomas II and thus the founder of the genealogically senior line of the House of Savoy.
Philip ’s will charged his niece Eleanor of Provence and her son King Edward I of England with the inheritance of Savoy.
Thomas III was fatally wounded in a border dispute with Humbert I of Viennois in 1282.
Blanche of Burgundy, Countess of Savoy
Bianca of Burgundy( 1288 – July 1348), was a Countess consort of Savoy, daughter of Robert II, Duke of Burgundy, and Agnes of France.
She married in 1307 Edward, Count of Savoy.
She was mother of Joan of Savoy.
In 1346 and 1347, she was an influence at the court of her nephew, Amadeus VI to pursue closer alliances with Burgundy to offset the pending sale of the Dauphiné to France.
This led to his brief engagement with Joan of Burgundy, daughter of Philip of Burgundy and Joan I, Countess of Auvergne.
She died July 1348, perhaps from the Black Death.
Princess Luisa Cristina of Savoy
Princess Luisa Cristina of Savoy (27 July 1629 – 12 May 1692) was a Princess of Savoy by birth and the eldest daughter of Victor Amadeus I, Duke of Savoy.
She married her uncle Prince Maurice of Savoy but had no children.
She was the owner of the future "Villa della Regina".
She was a first cousin of Louis XIV of France and Charles II of England.
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.
Yolande Palaeologina of Montferrat
Yolande Palaiologina or "Violant" (Moncalvo, June 1318 – Chambery, December 24, 1342) was the daughter of Theodore I, Marquess of Montferrat and Argentina Spinola {1303-1356}, a Genoese lady, daughter of Opicino Spinola.
She received the name Yolande from her paternal grandmother Irene of Montferrat.
Bianca of Savoy
Bianca of Savoy (1337– Pavia, 31 December 1387) was Lady of Milan by marriage to Galeazzo II Visconti.
She was the only surviving daughter of Aimone, Count of Savoy and Yolande Palaeologina of Montferrat.
Victor Amadeus II, Prince of Carignano
Victor Amadeus of Savoy (31 October 1743 – 10 September 1780) was a member of the House of Savoy and Prince of Carignano.
He was the brother of the murdered "princesse de Lamballe" and grandfather of King Charles Albert of Sardinia.
Yolande Louise of Savoy
Yolande Louise of Savoy( 1487–1499), was a Duchess Consort of Savoy; married to Philibert II, Duke of Savoy.

Question: Who is the maternal grandfather of Bianca Of Savoy?