Author: Leora Oldessroth
Tyrn was the grandson of Artur Hawkwing through whom the Firsts of Mayene claim descent from Artur Hawkwing. There is no actual historical evidence that any children or grandchildren of Hawkwing survived after Tyrn's death. However, given the turbulent state of affairs after Hawkwing's death, it is possible that any surviving family would have been hidden for their own safety.
(Reference: The World of Robert Jordan's "The Wheel of Time")