Why did madame Antoinette de mauban help Rudolf rassendy?

There appears to be no historical record of a "Madame Antoinette de Mauban" or a "Rudolf Rassendy" in a way that suggests they had any relationship. It's possible that these names are fictional or misremembered.

To help me understand your question better, could you please provide:

* More context: Where did you encounter these names? Was it a book, movie, or some other source?

* What kind of help are you referring to? Were they involved in a crime, a political event, or something else?

With more information, I can help you figure out the reason for their supposed interaction.