A similar entry appears in the Wheel of Time Companion confirming the information available in the main story arc.
Author: Atarah al'Norahn
The full name was not recorded in the main series, but was given in the Wheel of Time Companion. Other information about the character is also included in the Companion, but we did not use it in the TarValon.Net Library.
Aiden Shimura is an Atha'an Miere Aes Sedai of the Brown Ajah. She is one of only three current Aes Sedai who have come from the Sea Folk. The other two are Zemaille and Nyein (CoT, Ch. 21). Aiden and Nyein were likely Aes Sedai during the Aiel War, since, as an Accepted, Moiraine thinks to herself that there are four Sea Folk Aes Sedai, two of them very old; Zemaille was still an Accepted, so it is likely that Aiden and Nyein were the younger of the four and that the older two have died (NS, Ch. 3).
She is round and darker than Zemaille (CoT, Ch. 21).
All three of the Sea Folk Aes Sedai work in the library. They have rooms on the upper levels and willingly immerse themselves in their labors in the library. They are seldom seen (CoT, Ch. 21).