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.
Charles II, Duke of Bourbon
Charles II, Duke of Bourbon( Château de Moulins, 1434 – September 13, 1488, Lyon), was Archbishop of Lyon from an early age and a French diplomat under the rule of Louis XI of France.
He had a 2- week tenure as Duke of Bourbon in 1488, being ousted afterward by his younger brother and successor, Peter II, Duke of Bourbon.
Marie, Duchess of Auvergne
Marie of Berry( c. 1375 – June 1434) was" suo jure" Duchess of Auvergne and Countess of Montpensier in 1416- 1434.
She was the daughter of John, Duke of Berry, and Joanna of Armagnac.
She was married three times.
She acted as administrator of the Duchy of Bourbon for her third spouse John I, Duke of Bourbon, during his imprisonment in England after he was captured following the French defeat at the Battle of Agincourt in 1415, until 1434.
Bonne of Berry
Bonne of Berry( 1362/1365 – 30 December 1435) was the daughter of John, Duke of Berry, and Joanna of Armagnac.
Through her father, she was a granddaughter of John II of France.
Louis I, Count of Montpensier
Louis de Bourbon( 1405 – May 1486) was the third son of John I, Duke of Bourbon and Marie, Duchess of Auvergne.
He was Count of Montpensier, Clermont- en- Auvergne and Sancerre and Dauphin of Auvergne and was a younger brother of Charles I of Bourbon.
He founded the Bourbon- Montpensier branch of the House of Bourbon, who would eventually take over the Duchy in 1505.
Louis II, Duke of Bourbon
Louis de Bourbon, called the Good (4 February 1337 – 10 August 1410), son of Peter de Bourbon and Isabella de Valois (the sister of French King Philip VI), was the third Duke of Bourbon.
Duke Louis is reported to have been somewhat mentally unstable, specifically having a trait of nervous breakdowns which is presumably hereditary; this trait was also evidenced in his sister Joanna of Bourbon (the wife of French King Charles V), his nephew Charles VI of France (called "The Mad"), his father Duke Peter, and his grandfather Louis I, Duke of Bourbon.
The teenage Louis inherited the duchy from his father Duke Peter I after his death in the Battle of Poitiers in 1356.
On August 19, 1371, he married Anne of Auvergne (1358–1417), Countess of Forez and a daughter of Beraud II, Dauphin of Auvergne, and his wife the Countess of Forez, and they had four children:
In 1390, Duke Louis launched the Barbary Crusade against the Hafsids of Tunis, in conjunction with the Genoese.
Its objective was to suppress piracy based in the city of Mahdia, but the siege was unsuccessful.
Duke Louis died at Montlucon in 1410, at the age of 73.
John I, Duke of Bourbon
Jean de Bourbon (1381–1434) was Duke of Bourbon, from 1410 to his death and Duke of Auvergne since 1416.
He was the eldest son of Louis II and Anne of Auvergne.
Through his mother, John inherited the County of Forez.
During the Armagnac–Burgundian Civil War he took sides against the Burgundians.
John was captured at the Battle of Agincourt and died a prisoner in London, in spite of the payment of several ransoms, and promises to support the king of England as king of France.
In 1400 in Paris, he married Marie, Duchess of Auvergne, daughter of John, Duke of Berry, who inherited the Auvergne title from her father.
They had three sons:
In addition, he had an illegitimate daughter:
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.
John II, Duke of Bourbon
Jean( John) de Bourbon, Duke of Bourbon( 1426 – 1 April 1488, Château de Moulins), sometimes referred to as John the Good and The Scourge of the English, was a son of Charles I of Bourbon and Agnes of Burgundy.
He was Duke of Bourbon and Auvergne from 1456 to his death.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).

Question: Who is John I, Duke Of Bourbon's paternal grandfather?