From A Wiki of Ice and Fire
Naerys by Amok©
|Born||In 138AC, at King's Landing|
|Died||In or between 179AC and 184AC, at King's Landing|
|Spouse||Aegon IV Targaryen|
|Book(s)|| A Game of Thrones (Mentioned)|
The World of Ice and Fire (Mentioned)
Naerys had the Targaryen looks, a very fine and delicate beauty, almost unworldy. She was very slender and small, with big purple eyes and fine, pale, porcelain skin, near translucent. Naerys dressed well, but simply, and seldom wore her crown or any other jewellery. Though she had the silver-gold hair of the Targaryens, she often bound it up beneath a hair net or concealed it beneath a cowl. She bore a certain resemblance to Daenerys Targaryen.
Naerys was the only daughter of King Viserys II Targaryen. According to semi-canon sources, she almost died in the cradle and was sickly for most of her life, she found most physical activity to be very taxing. She ate but little and was painfully thin, almost emaciated.
Naerys loved music and poetry, played the harp very well, enjoyed sewing and embroidering. She was devout in her faith, and often found solace in the pages of the Seven-Pointed Star. Once Daeron was born she asked Aegon to release her from her vows so she could join the Faith but he refused her. She was unhappy in her marriage and it was said only her son Daeron or her brother Aemon could make her smile.
Aegon was equally unhappy with his marriage and Naerys was the only woman he took no pleasure in bedding, he did not love her as she was pious, gentle and frail, everything Aegon loathed. Aegon could have easily absolved the marriage by granting her request to join the Faith of the Seven and then Aegon could marry any other woman of his choosing. Why he never did this is cause of much speculation among the Maesters. The answer most likely was simple cruelty. According to Grandmaester Alford after the birth of Prince Daeron, he warned Aegon that a another pregnancy could kill Naerys. Naerys after giving him an heir begged him to allow her to join the Faith of the Seven as a Septa and absolve the marriage. Aegon refused though and insisted she still perform her ""wifely duties". 
Through out the years, Naerys would go through several difficult pregnancies, all of which she barely survived, during the reign of Baelor the Blessed Naerys gave birth to two twins who died after the birth, the news caused king Baelor to fast for a moon's turn.  In 172AC after a difficult labour she gave birth to a daughter named Daenerys.
After her husband Aegon became King, rumours started that their son Daeron had not been fathered by Aegon, but by Aemon, their brother. The truth of this claim has never been proven or disproven, though the singers claim Naerys loved Aemon, and Aemon loved her. It is said that Aemon cried when Naerys and Aegon got married. Aemon joined the Kingsguard soon after the wedding, at the age of 17. Naerys brother, Prince Aemon, championed her and defended her honor against the slanders of Ser Morgil, when he accused her of treason.
The writings of Maester Kaeth in the Lives of Four Kings, claim it was in fact Aegon who secretly started the rumors of Naerys adultery and used the knight, Ser Morgil to spread this tale, at the time King Aegon denied this. These accusations coincidentally started when Aegon and his heir Prince Daeron were quarreling in 174AC. Daeron opposed Aegons plan for an unprovoked war on Dorne.
No matter what the truth was of the matter, Aemon eventually died defending Aegon from two men who attempted to kill him. Naerys did not survive long after Aemons death, as she died in childbirh a year later. The child did not survive either.
King Aegon did little to honor either of his siblings memories and after their deaths he attempted to further sully and disparage their memories despite the fact Aemon gave his life protecting him. 
It should be noted that until now, only rumours about Daeron's parentage are known. For as far as is known, there has been no one to question the paternaty of Daenerys, Naerys' daughter. Daeron and Daenerys were her only children who survived labour.
References and Notes
- ↑ The World of Ice and Fire, Viserys II.
- ↑ See the Naerys Targaryen calculation.
- ↑ 3.0 3.1 3.2 Naerys Targaryen. (March 9, 2006) So Spake Martin
- ↑ A World of Ice and Fire, Aegon IV.
- ↑ The World of Ice and Fire, Baelor I.
- ↑ The World of Ice and Fire, Daeron II.
- ↑ 7.0 7.1 7.2 A World of Ice and Fire.
- ↑ A Game of Thrones, Chapter 15, Sansa.
- ↑ 9.0 9.1 The World of Ice and Fire, Aegon IV.