EmLar was a gray scaleless Wyrr dragon, father of Irelia and mate of Wistala. He was grandsire of the siblings, and was responsible for passing his gray genes to AuRon. He was also grandsire of NiVom.
He took part at the First Urlant War, AuRye who would be another grandfather of the Siblings also took part at the war. His actions were decisive to ensure the stability of the humans of the Upholder.
Later however he was disgraced and went in exile out of the Lavadome and the Empire, apparently because he was opposed to the Tyr. It's also stated that he leader of the back-to-nature group of dragons, that refused the growing corruption of the Empire and the dangers of such civilization. He was also against the use of splitting males hatchling to prevent the hatchling fight.
It's unknown if Irelia managed to find his father after she deserted the Lavadome. It's known however that Wistala, mate of EmLar, spent her last years in disgrace and sadness in the Empire: Irelia kept her memory alive, naming Wistala after her own mother.
The same name of EmLar would live on the mating-song and memory of Irelia and AuRon, and in the blood of his descendants. When AuRel realized how the Champion of the clutch was a scaless gray, he was disappointed but Irelia was quick to underline how he probably took after her grandfather: from her words appears she kept great respect for him.