Peter I, Duke of Bourbon
Peter I of Bourbon (1311 – 19 September 1356, Poitiers) was the second Duke of Bourbon, from 1342 to his death.
Peter was son of Louis I of Bourbon, whom he also succeeded as Grand Chamberlain of France, and Mary of Avesnes.
Duke Peter is reported to have been somewhat mentally unstable, a trait of nervous breakdowns (presumably hereditary)
that showed clearly for example in his daughter Joan of Bourbon, the queen, and in her son, king Charles VI of France, as well as in Peter's only surviving son, Duke Louis II.
Peter II, Duke of Bourbon
Peter II, Duke of Bourbon (1 December 1438 – 10 October 1503 in Moulins), was the son of Charles I, Duke of Bourbon, and Agnes of Burgundy, and a member of the House of Bourbon.
He and his wife Anne of France ruled as regents during the minority of Charles VIII of France.
Jean I of Albret
Jean I of Albret( 1425 – 3 January 1468), 15th Lord of Albret, was a Viscount of Tartas.
Margaret of Passavant
Margaret of Nully also known as Margaret of Passavant, was the hereditary Lady of Passavant, Akova and Mitopoli in the Principality of Achaea, in Frankish Greece.
Beatrice of Bourbon, Queen of Bohemia
Beatrice of Bourbon( 1320 – 23 December 1383) was a French noblewoman.
A member of the House of Bourbon, she was by marriage Queen of Bohemia and Countess of Luxembourg.
She was the youngest daughter of Louis I, Duke of Bourbon, and Mary of Avesnes.
Margaret of Bourbon, Lady of Albret
Marguerite de Bourbon, Lady of Albret (1344 – 1416) was a daughter of Peter I, Duke of Bourbon, and his wife Isabella of France, who was a daughter of Charles of France.
Margaret was a member of the House of Bourbon.
Margaret married Arnaud Amanieu, Lord of Albret, on 30 June 1368; the marriage was the outcome of a secret treaty between Charles V of France and Arnaud Amanieu.
The couple had one son, Charles d'Albret, who became Count of Dreux and Constable of France.
He was killed at the Battle of Agincourt.
Mathilde of Bourbon
Mathilde of Bourbon( – 18 June 1228) was a French noblewoman who was the ruling Lady of Bourbon from 1171 until her death.
Princess Margaret of Denmark
Princess Margaret of Denmark
( Margrethe Françoise Louise Marie Helene; 17 September 1895 – 18 September 1992) was a Danish princess by birth and a princess of Bourbon- Parma as the wife of Prince René of Bourbon- Parma.
She was the youngest grandchild of Christian IX of Denmark and Queen Louise.
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.
Alain I of Albret
Alain I of Albret( 1440- 1522), called" The Great", was a powerful French aristocrat.
He was 16th Lord of Albret, Viscount of Tartas, the 2nd Count of Graves and the Count of Castres.
He was the son of Catherine de Rohan and Jean I of Albret.
He was the grandson and heir of Charles II of Albret and became head of the House of Albret in 1471.
During his half century of rule, he took a political course which was more agitated than effective, following his father's example, making him one of the most visible actors on the stage of Europe.

Question: Who is Margaret Of Bourbon, Lady Of Albret's paternal grandfather?
Answer: Louis I