|Died||In 130 AC, at the Dragonpit|
The World of Ice & Fire (mentioned)|
Fire & Blood (mentioned)
The Sons of the Dragon (mentioned)
The Rogue Prince (mentioned)
The Princess and the Queen (mentioned)
Dreamfyre was hatched during the reign of King Aegon I Targaryen. She bonded with Aegon I's first grandchild, Princess Rhaena Targaryen, who became Dreamfyre's rider in 35 AC at the age of twelve. By 43 AC, she had laid two clutches of eggs. When Rhaena Targaryen was wed to her brother, Aegon and sent on a royal progress by their father King Aenys I Targaryen, Rhaena sensing the tension in the realm wished to take Dreamfyre with her, but her father forbade it as Aegon had not yet claimed a dragon, and the King didn't want his son to be seen riding a horse, while his wife rode a dragon. Dreamfyre remained in King's Landing. 
Rhaena's father, King Aenys I Targaryen, died in 42 AC and the crown was usurped by their uncle, Maegor I. Rhaena and her husband smuggled themselves into King's Landing in 43 AC, while Maegor was at Oldtown. Rhaena was reunited with Dreamfyre and Aegon finally claimed a dragon of his own, Quicksilver. Knowing they could not hold the Iron Throne, they left King's Landing on their dragons to raise an army. When Aegon went to war against they uncle, Rhaena's and Dreamfyre did not accompany them, no one knows if that choice was Rhaena's or Aegons. Aegon was killed in the Battle Beneath the Gods Eye along with Quicksilver by Maegor mounted on Balerion the Black Dread. Since Dreamfyre was younger and smaller than Quicksilver, many historians believe that Dreamfyre wouldn't have been much of a threat to the Black Dread.
Princess Rhaena sent her twin daughters Aerea and Rhaella into hiding. However, she felt that she could not hide herself, as she had Dreamfyre with her, who was not easily hidden. Therefore she flew Dreamfyre to Fair Isle off the coast in the Sunset Sea, where they stayed at Faircastle. There they remained until 47 AC, when Maegor commanded Rhaena to return to King's Landing. Not wanting to bring Maegor's wrath and Balerion's fires down on Fair Isle, Rhaena flew on Dreamfyre to the Red Keep. Only to find out that Maegor wished make Rhaena his bride and his Mistress of Whisperers, Tyanna of the Tower had found her daughters and used them as hostages. 
During the reign of Jaehaerys I Targaryen, Dreamfyre was with Rhaena in the Westerlands, where she laid a clutch of dragon eggs. Rhaena later took residence on Dragonstone, where Dreamfyre made her lair there and laid a second clutch of three dragon eggs that were later stolen in 54 AC by Rhaena's former close friend Elissa Farman. Later that year Rhaena discovered that her daughter, Princess Aerea had fled the island on the back of a dragon: Balerion. Rhaena mounted Dreamfyre and flew to the Red Keep, convinced that Aerea had gone there. Rhaena remained at court while Jaehaerys sent forth ravens across the realm, but after seven days, she declared that she was going to look for Aerea herself and left on Dreamfyre in search of her daugher.
Rhaena took Dreamfyre with her all over Westeros but searched in vain. In 56 AC, Rhaena received a message while on Greenstone that Princess Aerea returned to King's Landing on Balerion. She had been infected with an insidious disease that killed her that same day. By the time the raven carrying the news about Aerea reached Greenstone, Aerea had already been cremated. Rhaena returned to King's Landing and took possession of her daughter's ashes. Refusing Jaehaerys's offer to have Aerea's ashes interred on Dragonstone as Aerea had hated the place, Rhaena instead took Aerea's ashes into the sky upon Dreamfyre and released them into the wind, claiming that Aerea had "wanted to fly".
Rhaena went into self imposed isolation at Harrenhal after her daughters death, though she still frequently rode Dreamfyre, she wished to be left alone. Dreamfyre remained at Harrenhal with Rhaena until her death in 73 AC. After which Dreamfyre made her lair in the Dragonpit at King's Landing.
During the reign of King Viserys I Targaryen, Dreamfyre bonded with Princess Helaena Targaryen. During the Dance of the Dragons, after Helaena's six-year old son was slain during the civil war, Helaena spent her days in darkness, weeping, and was not capable of riding Dreamfyre anymore. Dreamfyre resided in the Dragonpit, and it is said that when Helaena threw herself to her death from her window in Maegor's Holdfast Dreamfyre rose suddenly with a roar that shook the Dragonpit and snapped two of the chains that bound her.
Dreamfyre remained chained in the Dragonpit when the people of King's Landing stormed the pit. Out of the four dragons present, Dreamfyre was the only dragon able to break free of her chains when the mob broke in. She took wing, circled the cavernous interior of the dome and swooped down to attack the men below. She slew more men than the other three dragons combined. Archers and crossbowmen loosed arrows and quarrels at the her, and whenever she landed men swarmed her to attack, driving her back into the air. Eventually one of her eyes was nicked by a crossbow bolt. Half-blind and maddened Dreamfyre flew into the Dragonpit's great dome above, which cracked on impact. Half of it came tumbling down, crushing her and the dragonslayers under tons of broken stone and rubble.
Known dragonriders of Dreamfyre
- The Princess and the Queen.
- The Sons of the Dragon.
- The World of Ice & Fire, The Targaryen Kings: Maegor I.
- Fire & Blood, The Sons of the Dragon.
- Fire & Blood, Birth, Death, and Betrayal Under King Jaehaerys I.
- Fire & Blood, A Surfeit of Rulers.
- Fire & Blood, The Year of the Three Brides - 49 AC.
- Fire & Blood, Jaehaerys and Alysanne - Their Triumphs and Tragedies.