Shackel said:
The Duke of Burgundy and the Duke of Berry were after the throne.
If Charles VI died earlier, Louis could be killed earlier as well.
They weren't after the throne. They were after power and wealth. The Duke of Berry and the Duke of Burgundy were both declared regents for Charles VI when he ascended the throne (he was a minor) and they reclaimed the regency later, when Charles VI descended into madness. They had plenty of occasions of killing Charles VI during his reign but they didn't.
If Charles VI were to die bewteen 1390 and 1410, Salic Law would be applied by the French nobles. The order of succession if the following one, providing the different cases :
1. Charles - Second son of Charles VI. Born in 1392, died in 1401 OTL.
2. Louis - Third son of Charles VI. Born in 1397, died in 1415 OTL.
3.John - Fourth son of Charles VI. Born in 1398, died in 1417 OTL.
4.OTL Charles VII - Fifth and last son of Charles VI. Born in 1403, died in 1461 OTL.
Then comes the Orléans line.
5.Louis, Duke of Orléans - Charles VI's brother. Born in 1372, murdered in 1407 OTL.
6.Charles, Duke of Orléans - Eldest son of Louis of Orélans. Born in 1391, died in 1465 OTL.
7.Philippe, count of Vertus - Fourth but second surviving son of Louis of Orléans. Born in 1396, died in 1420 OTL.
8.John, count of Angoulême - Fifth but third surviving son of Louis of Orléans. Born in 1400, died in 1467 OTL.
Then comes the line of Louis of Anjou (Louis I of Naples), Charles VI's eldest Uncle.
9.Louis II of Sicily - Son of Louis I of Naples. Born in 1377, died in 1417 OTL.
10.Louis III of Sicily - Son of the former. Born in 1403, died in 1434 OTL.
11.René of Anjou - Second son of Louis II of Sicily. Born in 1409, died in 1480 OTL.
12.Charles, prince of Tarente - Brother of Louis II of Sicily. Born in 1380, died without children in 1404 OTL.
Then comes the line of the Duke of Berry.
13.John, Duke of Berry - Uncle of Charles VI. Born in 1340, died in 1416 OTL.
14.John, count of Montpensier - Second son of John of Berry. Born in 1363, died in 1402 OTL.
And then comes the line of the Duke of Burgundy.
14.Philip II the Bold, Duke of Burgundy - Youngest Uncle of Charles VI. Born in 1342, died in 1404 OTL.
15.John the Fearless, Duke of Burgundy - Son of the former. Born in 1371, murdered in 1419 OTL.
16.Philip III the Good, Duke of Burgundy - Son of the former. Born in 1396, died in 1467 OTL.
And I'll stop there because I think we have all what we need.
We also have to take the English into account : remember that the Hundred Years' War is not officially over although there has been no fighting since some time. But both Henry IV, Henry V and the Yorkists could have claims for the French crown.