Are the Caryatids on the Erechtheion the Daughter's of Atreus?

Question

I am trying to research if the Caryatids on the Erechtheion were the daughter's of Atreus according to Greek Mythology. I heard they were sisters that killed each other. Does any one have any information on this topic. Please.

Answer 1

Vitruvius tells another story (also not highly likely):
http://www.mlahanas.de/Greeks/Arts/Architect.htm
(scroll down to "What represent the Caryatides")