To ascertain there would be no repetition of Princess Aerea’s escape on Balerion, the king decreed that all the dragons should be guarded night and day, regardless of where they laired. A new order of guards was created for this purpose: the Dragonkeepers, seventy-seven strong and clad in suits of gleaming black armor, their helms crested by a row of dragon scales that continued, diminishing, down their backs.

- Fire and Blood "Jaehaerys and Alysanne: Their Triumphs and Tragedies"

Near dawn, Jaehaerys bolted to his feet shouting that a dragon was needed, that his daughter must have a dragon, and ravens took wing for Dragonstone, instructing the Dragonkeepers there to bring a hatchling to the Red Keep at once.

- Fire and Blood "The Long Reign - Jaehaerys and Alysanne: Policy, Progeny, and Pain"

Prince Aemon emerged victorious, in part by dint of hammering his brother into submission. Later he distinguished himself in the lists as well, and was awarded his knight’s spurs in recognition of his skills. He was seventeen years of age. With knighthood now achieved, the prince wasted no time becoming a dragonrider as well, ascending into the sky for the first time not long after his return to King’s Landing. His mount was blood-red Caraxes, fiercest of all the young dragons in the Dragonpit. The Dragonkeepers, who knew the denizens of the pit better than anyone, called him the Blood Wyrm.

- Fire and Blood "The Long Reign - Jaehaerys and Alysanne: Policy, Progeny, and Pain"

Like her brothers before her, Alyssa Targaryen meant to be a dragonrider, and sooner rather than later. Aemon had flown at seventeen, Baelon at sixteen. Alyssa meant to do it at fifteen. According to the tales set down by the Dragonkeepers, it was all that they could do to persuade her not to claim Balerion. “He is old and slow, Princess,” they had to tell her. “Surely you want a swifter mount.” In the end they prevailed, and Princess Alyssa ascended into the sky upon Meleys, a splendid scarlet she-dragon, never before ridden. “Red maidens, the two of us,” the princess boasted, laughing, “but now we’ve both been mounted.”

The princess was seldom long away from the Dragonpit after that day. Flying was the second sweetest thing in the world, she would oft say, and the very sweetest thing could not be mentioned in the company of ladies. The Dragonkeepers had not been wrong; Meleys was as swift a dragon as Westeros had ever seen, easily outpacing Caraxes and Vhagar when she and her brothers flew together.

- Fire and Blood "The Long Reign - Jaehaerys and Alysanne: Policy, Progeny, and Pain"

Born in 67 AC, three years after Daella, Saera had all the courage that her sister lacked, along with a voracious hunger…for milk, for food, for affection, for praise. As a babe she did not so much cry as scream, and her ear-piercing wails became the terror of every maid in the Red Keep. “She wants what she wants and she wants it now,” Grand Maester Elysar wrote of the princess in 69 AC, when she was only two. “Seven save us all when she is older. The Dragonkeepers had best lock up the dragons.” He had no notion how prophetic those words would be.

- Fire and Blood "The Long Reign - Jaehaerys and Alysanne: Policy, Progeny, and Pain"

She would not have that time. That very night, Princess Saera sealed her fate. Instead of remaining in her rooms as she had been instructed, she slipped away whilst visiting the privy, donned a washerwoman’s robes, stole a horse from the stables, and escaped the castle. She got halfway across the city, to the Hill of Rhaenys, but as she tried to enter the Dragonpit, she was found and taken by the Dragonkeepers and returned to the Red Keep.

- Fire and Blood "The Long Reign - Jaehaerys and Alysanne: Policy, Progeny, and Pain"