Bonne came to the marriage with a dowry of 3000 florins annually. The wedding took place while there was active hostility during the Hundred Years War. Amadeus was supporting France, and came to Paris for the wedding but had to return immediately to the fighting.
Eleven years later, they had had a few children (some of whom died young). In 1366 Amadeus was to go to Bulgaria on a "mini Crusade." He trusted Bonne enough to leave her in charge of the County. While he was away, a cousin died, James the Lord of Piedmont. His widow disputed the succession of their eldest son on behalf of her younger sons. (The eldest was from an earlier marriage.) Bonne managed to keep both sides from warring, but could not negotiate a settlement about succession. The eldest son, Philip, had to travel to find Amadeus to obtain a ruling.
In 1382, Bonne actually sold some of her jewelry to raise money to support her husband's military endeavors. She also spent money on building. In 1371 she had built a chateau in a duchy of Savoy on the border of France, overlooking Lake Geneva.
When Amadeus died in 1383, his will left Bonne in charge rather than his son, Amadeus VII. The younger Amadeus had been born in 1360, so he was older than his father was when the succession passed to him. The younger Amadeus was betrothed to the daughter of the Duke of Burgundy, and there was a concern that French influence on the future of Savoy was becoming too great.
She and the council maintained the regency while Amadeus VII got married and had a child, Amadeus VIII. Bonne's son died in. 1391. A few years later, her son's doctor accused Bonne of ordering her son's death. The Duke of Burgundy accused members of the Savoy council of being involved. They caused the regency to be taken from her, leaving her grandson, Amadeus VIII (1383 - 1451).
Amadeus VIII had an unusual promotion from his initial royal title. It's a plot twist you won't see coming, but I;'ll explain it all next time.
