Aranarth was the son of Arvedui, the last King of Arnor, and FĂriel, a princess of Gondor, and the first Chieftain of the DĂșnedain. When his father disappeared after a crushing defeat in battle, a young Aranarth searched tirelessly for any news of him, at last discovering that he had fled north to the Ice-bay of Forochel. He beseeched the aid of the elves to save the king, but though CĂrdan sent a ship to rescue him, it was sunk in the freezing water and Arvedui perished.
     As his fatherâs heir, Aranarth could have claimed the title of King of Arthedain, but as the remnants of Arnor had been destroyed by the Witch-king of Angmar, he chose instead to call himself the Chieftain of the DĂșnedain. Upon EĂ€rnurâs arrival in the land that once had been Arnor, Aranarth joined with the heir of the South-kingdom to defeat Angmar once and for all. Though the Witch-king survived, he fled south to Gondor where he would focus his efforts on EĂ€rnur rather than Aranarth and his people.
     For many long decades, Aranarth led his people, now known as the Rangers of the North, in a wild and woodland life. During his rule, the North experienced much chaos, including the fall of Khazad-dĂ»m and the rise of Dol Guldur. Aranarth was a skilled tracker, known for leaving no footprints as he walked, and under his guidance they hunted down many remaining bands of orcs and defended those few inhabitants of Eriador (including the Shire, who in the absence of a King elected their first Thain, Bucca of the Marish) from Angmarâs servants.
     After many years of solitude save for the steadfast companionship of his younger brother Amathin, Aranarth at last met Lorneth, a contemplative woman training to become a healer. At first, Lorneth shyly demurred her Chieftainâs advances, but in time she grew to love him, and the two were wed.
     When the couple were expecting their first child, a band of men once under the service of Angmar mustered a coordinated attack against the DĂșnedain. Amathin was slain defending his brotherâs wife, and after this loss Aranarth resolved that Lorneth must be sent to safety until he could take care of the bandits. He sent her to the hidden sanctuary of Imladris with an escort and several heirlooms of Arnor, counting on Lord Elrond to deliver mercy upon the line of Elros as he had when Isildur delivered his own pregnant wife to Rivendell in a time of war.
     Elrond welcomed Lorneth into his valley and secured the heirlooms she brought with her. Within the month, Lornethâs son Arahael was born, and before he was a year old, a victorious Aranarth rushed to Imladris to meet his son. Lorneth and Aranarth had a second son, Idhrion, only a few years later; the brothers were inseparable, Idhrion serving faithfully under Arahael throughout all his days as Chieftain.