Elron is brother-in-law to the Baron Kotyk, whom offered Sparhawk's entourage shelter from a storm just inside the Daresian continent. Elron is a pompous, overly-dramatic, not very adept poet whose pride and joy is a poem called "Ode to Blue".
In his spare time, Elron has paraded around as "Sabre", a masked and caped man who stirs up trouble amongst the serfs and the nobility. He is later involved in the plot to kidnap Queen Ehlana. It is implied that Stragen kills him at the end of The Tamuli.
Sabre is a patriot, a mysterious figure who appears out of the night to inspire the men of Astel to rise up and smash the oppressor's chains. He's always masked, you know. -Domes of Fire