Kulren was the chieftain of a tribe of Easterlings who entered Beleriand in the First Age. He was a great war-leader who took close counsel with his wife Nabren, an archer and scout. Nabren passed on her skills to her eldest son Kultan, while her other two sons, Kulnab and Kulrad, favored the sword as did their father. Kulnab was also a great rider, commanding a company of horse-mounted warriors, while Kulrad had the gift of ekhda, “wildness,” which allowed him to go battle-mad and hew down his foes without fear for his own life.
When they crossed the Blue Mountains into Beleriand some months after their kinsmen led by Pegmûl, Kulren and his folk were met by the elven-lord Maedhros the Tall, who offered allegiance to them. Though at first Kulren was hesitant to bind his service to such a fearsome elf, Nabren saw the value in the allegiance and urged her husband to agree. When orcs attacked their camp during negotiations, the elven and mortal vassals of Maedhros fought fiercely against them. Kulrad recognized a fellow ekhren in Maedhros, who alone surpassed his deadliness in battle, and it was this more than anything that moved his father to agree to serve under the Lord of Himring.
Kulren’s folk settled in and around Himring, an unforgiving land made harsher by the recent Battle of the Sudden Flame. Kulren and his youngest son Kulrad dwelt in the main fortress, training and strategizing under Maedhros, while Nabren and her eldest son Kultan worked to till the lands where their people lived. Kulnab befriended his lord’s brother Maglor, who like him was both a singer and cavalry-leader. They all pledged their loyalty to the Union of Maedhros, and were dedicated by bonds of friendship and respect to their allies.
In the Fifth Battle, Kulren’s folk remained true to their allegiances when Pegmûl’s sons betrayed the Union. Kulren himself was among the first to fall, brought down by Khagan who was later named Uldor the Accursed; then died Kulnab, attacking his father’s killer in vengeance, and his body was thrown into the flames of Glaurung. In grief and rage, Maglor slew Khagan for his treachery and the slaughter of his friend, while Kultan and Kulrad battled Khagan’s brothers, slaying them both at the cost of their own lives. Nabren also perished, bleeding out from her wounds upon the battlefield, and the greater host of her people were slain or captured.
But the faithfulness of Kulren and his family would not be forgotten by the elves who survived this Battle of Unnumbered Tears. Maglor immortalized them in song, giving them each Sindarin names praising their loyalty: Bór the Faithful for Kulren their chief, Díbór the Faithful Wife for Nabren his spouse, Borlad of the Faithful Plain for Kultan the farmer, Borlach the Faithful Flame for Kulnab the minstrel-rider consumed in the end by dragonfire, and Borthand the Faithful Shield for Kulrad whose ekhda proved vital to the defense of those folk who survived the bloodshed.