Madame de Chevreuse has been exiled to Tours because the king thinks that she is conspiring against him; she is Aramis's beloved.
Madame de Lannoy is one of the cardinal's spies; she reports all of the queen's activities to him; in this way, the cardinal knows about the diamond tags which the queen gave to Buckingham.
Madame Bois-Tracy is a trusted friend of the queen.
