Author: Kyria d'Oreyn
Hyran was Nicola's husband-to-be.
He intended to marry Nicola after his duty to follow the Prophet and the Dragon Reborn was done, but he was killed instead.
(Reference: The Fires of Heaven, Chapter 47)
"Duty had been very important to Hyran. He would have made a good and conscientious husband and father, so Nicola said." (Nynaeve; The Fires of Heaven, Chapter 47)