A similar entry appears in the Wheel of Time Companion confirming the information available in the main story arc.
Author: Bryce al'Mara
Unless stated otherwise, all information herein is taken from Towers of Midnight, Chapter 49.
Alarch is one of Aviendha and Rand's children that we see in Aviendha's visions of the future in the glass columns ter'angreal in Rhuidean. He took more after their wetlander side with dark hair. He often deferred to his brother Janduin. He sat in on the meeting on whether the Aiel should go to war with the Seanchan.