Unless stated otherwise, all information herein is taken from Towers of Midnight, Chapter 49.
Ladalin is a descendant of Aviendha and Rand, the last survivor of that lineage. She is a Wise One, but is not able to channel. Aviendha sees part of her life in one of the visions in the Glass Columns and by that time only three clan chiefs and two wise ones remain of the Aiel leaders. The Aiel are losing badly and she decides that they should retreat back to the Waste and try and rebuild. Unlike Takai, she does not blame Rand and insists that Aiel take responsibility for themselves. She does not know about ji'e'toh and fights because she has always done so and because of her hatred of the Seanchan.