Born in 138 AC in King's Landing, the only daughter and youngest child of King Viserys II and Larra Rogare of Lys, Naerys was left to the court when her mother forsook husband and children to return to Lys the year after her birth. Frail and sickly from the cradle, slight and painfully thin, she was pious and gentle, loved music and the harp and the pages of The Seven-Pointed Star, and would have taken the veil as a septa had her father allowed it. Of her two brothers she loved Aemon best, for he alone could make her laugh; yet in 153 AC Viserys wed her to her other brother, Aegon, against her wishes, and the singers say the Dragonknight wept through the ceremony.
She bore Aegon a son, Daeron, on the last day of 153 AC, a birth so hard that Grand Maester Alford warned another might kill her. She begged the king to let them live henceforth as brother and sister, even to release her to the Faith, but Aegon refused and held her to her wifely duties. Through a succession of dangerous childbeds she lost a set of twins and bore a daughter, Daenerys, and at last died bringing forth a final child a year after Aemon's death, around 179 AC. Aegon, who became the king called the Unworthy, put about the slander that Daeron was no son of his but the Dragonknight's; Aemon answered it by championing her honor against Ser Morgil Hastwyck, and the songs of his love for his brother's queen outlived all three of them.