Liremahtar was born to Siremahtar and Celveliltallë in Aman. He and his father followed Ñolofinwë in the Exile, and they took part in the kinslaying, which was afterwards a matter of sorrow to them. But when they attempted to cross Helcaraxë, Siremahtar fell to its bitterness, and this added to Liremahtar's determination to reach Middle-earth. Soon after they arrived, the Battle of Lammoth took place, in which Liremahtar fought to honour his fallen sire. When they made contact with the Sindar in Mithrim, he took up his Sindarin name as Lirvaethor. Lirvaethor dwelled in Dor-lomin, Fingon's domain for a time. He attended Mereth Aderthad and spoke with many of the Laiquendi and some of the Sindar. He was among the force of the Noldor that fought in Dagor Aglareb, from which he had gained a gruesome gash across his chest, and so a distaste of war and Orqui had grown within him. He went to Nevrast, to heal and recover. Soon later he accompanied the Noldor of Nevrast to Gondolin, from which he stayed. During that time he thought of his father, and how his fallen sire would think of him, due to his distaste of war, and how he would simply become a Maeron and a healer, though seldom would he encounter a fellow Edhel that would require healing. Sadly his time of being a Healer was at its end for some time, for he had participated in the Nirnaeth Arnoediad, being of course of King Turgon's force, from which he would fight gloriously, singing loudly and courageous of Elvish songs and Poetry while he was fighting. It was a grave loss, many a days did Lirvaethor mourn for his fellow friends and brothers-in-arms. Sorrowful was Lirvaethor, for he heard now that Fingon had fallen, so sorrow was laid more heavily upon his shoulders. Long did he mourn, more longer now with the sorrowful news, but he did indeed overcome sorrow. He was among the Noldor that were in the House of the Harp that resisted their treacherous lord's orders, and deserted to aid Glorfindel and the House of the Golden Flower in the marketplace, but soon did he realize that he needed to escape, so he did. He was at the Havens of Sirion during the Third Kinslaying, from which he also escaped, lucky, or fateful was he. Seldom did he participate in acts of violence but he had joined in the battle of the War of Wrath, serving alongside his Noldor brethren. After the drowning of Beleriand, he dwelled in Lindon, serving as a healer and artist. He was in Elrond's host that came to Eregion to aid, later did he still go with Elrond, staying at Imladris. He still does reside in Imladris, but often did he go to Lindon.