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:
Catherine of Bourbon (b. 1378), d. young
John of Bourbon (1381–1434), Duke of Bourbon
Louis of Bourbon (1388 – 1404), Sieur de Beaujeu
Isabelle of Bourbon (1384 – aft. 1451)
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 72 or 73.