Alexander's mother, who was not the mother of Aridaeus, was jealous of this proposed marriage.

She thought that it was part of a scheme for bringing Aridaeus forward into public notice, and finally making him the heir to Philip's throne; whereas she was very earnest that this splendid inheritance should be reserved for her own son.

Accordingly, she proposed to Alexander that they should send a secret embassage to the Persian governor, and represent to him that it would be much better, both for him and for his daughter, that she should have Alexander instead of Aridaeus for a husband, and induce him, if possible, to demand of Philip that he should make the change.
Alexander entered readily into this scheme, and various courtiers, Ptolemy among the rest, undertook to aid him in the accomplishment of it.

The embassy was sent.

The governor of Caria was very much pleased with the change which they proposed to him.