Nienor is a character from J.R.R. Tolkien's legendarium, specifically featured in "The Silmarillion." She is the daughter of Túrin Turambar and Nienor, and is known for her tragic story. Nienor's life is marked by loss and sorrow, as she faces the consequences of her family's curse. In the tale, Nienor is initially unaware of her true identity and her connection to her brother, Túrin. Their fates intertwine in a series of tragic events, leading to a heartbreaking conclusion. Nienor's story highlights themes of fate, identity, and the impact of familial ties in Tolkien's works.