Lithariel

Lithariel was the leader of the Tribesmen of Núrn in the late Third Age, and the adopted daughter of Queen Marwen, ruler of Núrn.

Lithariel is non-canonical as she does not appear in the works of J.R.R. Tolkien, and only in the video game Middle-earth: Shadow of Mordor.

Biography
Lithariel was at some point adopted by Marwen, the Queen of the Shore, of Núrn, and eventually became a proficient warrior. She assumed leadership of the Tribesmen of Núrn, and led them for some time against the Uruks of Sauron, who began to encroach on the land of Núrn. During this time, as Sauron declared himself openly and began building his power, the wizard Saruman was able to gain an increasing degree of influence over Queen Marwen, though Lithariel was unaware of it.

Some time later, the ranger Talion journeyed to Núrn, seeking for a way to defeat the Black Hand and strike against Sauron's power. Saruman, hoping to gain control of Celebrimbor's wraith, which was bound to Talion, used Marwen to send the ranger on a series of quests, on which Lithariel aided Talion. Talion developed feelings for Lithariel during this time, but chose to focus on his mission and not bring further sorrow to her. Lithariel was at one point captured by Uruks, but Talion managed to rescue her before she could be executed.

On Talion's final return to Marwen, Saruman used the opportunity to attempt to wrest Celebrimbor away from Talion and bend the wraith to his own will. Talion, realizing Marwen's staff served as the conduit for the wizard's power, indicated as much to Lithariel, who broke the staff, thwarting Saruman's plan and freeing her mother from his influence. Once liberated, Marwen was able to tell Talion of the Tower of Sauron's location, and the ranger left with support from the tribesmen across the Sea of Núrnen.

His mission, while successful, gave the Black Hand an opportunity to raid Núrn, and on the ranger's return Marwen's stronghold was devastated. Though no remains were to be found, Marwen and Lithariel, along with many of the tribesmen, were presumed to have been slain.