Lian was a legendary Hunter of the Horn. One of the stories in "The Great Hunt of the Horn" is "Lian's Stand". Because other Hunters of the Horn have made it to the status of Heroes of the Horn (such as Rogosh Eagle-eye and Gaidal Cain), it is possible that Lian has, as well.
Thom tells the story of "Lian's Stand" at the Stag and Lion in Baerlon, Andor.
(Reference: The Eye of the World, Chapter 17)