On September 19, 1929 Edgar Cayce gave a reading for a fourteen year old girl said to have been a queen of Poseidia in Atlantis who ruled with an iron hand:
In the one before this we find in that land known as Poseida, in Atlantis. The entity then, again, in power, and queen of Poseida - in the name Amiee. The entity in power and in fame, RULING rather with the IRON hand - as would be termed in THIS day. Losing through a portion of the experience, in bringing peoples to the way of hating one another. In the present experience wrath often will find expression, and this must be subdued in self, will the entity gain that to which it should attain in the present experience. (ECR: 2894)
In addition to the specific insights this reading may have provided into the life patterns of this young woman in the twentieth century, the point regarding Atlantean society is that women could be powerful rulers in the most important city in Atlantis. In this instance the power was not wisely used and led to divisions within the society.
The timeframe for this Atlantean lifetime is not given. Divisions within Atlantean society were commonly cited in the Cayce readings.