Míriel was Finwë’s first wife and mother of Fëanor. She was very skilled in the art of weaving and needlework. As the birth of her son Fëanor took so much of her spirit, she went to the gardens of Lórien and there she rested. Her fëa departed her body for the halls of Mandos and her body was henceforth tended to by the maidens of Estë.
"She went then to the gardens of Lórien and lay down to sleep; but though she seemed to sleep, her spirit indeed departed from her body, and passed in silence to the halls of Mandos. The maidens of Estë tended the body of Míriel, and it remained unwithered; but she did not return. Then Finwë lived in sorrow; and he went often to the gardens of Lórien, and sitting beneath the silver willows beside the body of his wife he called her by her names. But it was unavailing; and alone in all the Blessed Realm he was deprived of joy. After a while he went to Lórien no more."
- The Silmarillion, Quenta Silmarillion, Ch 6, Of Fëanor and the Unchaining of Melkor