She was urged not to marry anyone that King Henry might recommend. She most likely refused to marry the Prince of Wales out of loyalty to Richard. If the ambassadors were allowed to speak to Isabella alone they were to assure her that her parents wanted to see her and were doing everything in their power to return her to France as quickly as possible.

In May of 1401, a treaty was signed at Leulinghem whereby King Henry agreed to return Isabella to France with her jewels and property. She was accompanied by the Earl of Worcester and handed over to the Count of St. Pol at Calais on July 21, 1401. Isabella returned home to her parents to their great joy. She reentered her mother’s household but ofcourse her status was not as important there as it was when she was Queen of England. But her mother did make sure she was surrounded by ladies of higher rank than she had before she went to England.

In May of 1406, Isabella was married to her cousin Charles of Orleans, son of Duke Louis of Orleans. When Louis was murdered in November of 1407, Charles became the new Duke. This marriage may have been seen by Isabella as a source of humiliation as her new husband was only the son of a Duke and she had once been a Queen. Records indicate Isabella visited her mother in April of 1409 when she was pregnant. She would die on September 14, 1409 after giving birth to her daughter