Born to Tywin and Joanna Lannister in 266 AC, Cersei and her twin brother Jaime were
raised in Casterly Rock of the Westerlands and were so similar in appearance, they sometimes
switched clothes and assumed each other’s identities in their youth.
Inseperable for most of their young lives, they began to experiment with each other sexually,
until caught by a servant who reported it to their mother, afterwhich they were separated
and forbidden from ever repeating what their actions.
In 273 AC their mother died giving birth to Tyrion Lannister.
The child who was born a dwarf inspired deep resentment and hatred from Cersei and their
father Tywin, with only Jaime treating the boy with respect and kindness.
As she grew Cersei began to explore her sexuality with more partners becoming interested in
both boys and girls.
Although an offer was made to House Lannister to betroth Cersei to young Oberyn Martell,
Tywin refused, in the hopes of pairing his daughter with Rhaegar Targaryen, heir to the
Iron Throne.
Cersei came to fantasize about marrying the handsome prince and becoming queen of the
seven kindoms, and was even told the betrothal was to occur at the Tournament of Lannisport
in 276 AC.
During the festivities, young Cersei and her friend Malara Heatherspoon journeyed into
the forest and encountered the woods witch maggy the frog, who spoke a troubling prophecy
Foretelling that Cersei would marry a man who’d have 16 bastards while she had 3 golden
haired children of her own.
It also stated that Cersei would be Queen until replaced by someone younger and more
beautiful, her children would be each wear crowns but die young and that she would be
killed by the Valonqar, meaning little brother in High Valyrian.
The final prophecy saw the death of Melara Heatherspoon, killed by Cersei later that
night to prevent anyone from ever learning of what was said.
Cersei was then told that King Aerys II rejected Tywin’s offer for betrothal to prince Rhaegar
who was later married to Elia Martell of Dorne.
By the age of 15 Cersei was living in King’s Landing with her father, and was once again
involved romantically with her brother who came to visit for a time.
Eager to have him stay with her, she schemed to have the King bring Jaime into the Kingsguard,
thereby having him move permanently to King’s Landing so they could be together.
However the plan backfired, when Tywin saw this as yet another insult by a petty king,
who’d grown jealous of his accomplishments and so now purposefully robbed him of the
heir to Casterly Rock.
And so Tywin quit his position as Hand of the King and moved back to Casterly Rock with
his daughter, thereby separating the twins once more.
In 283 AC, after the fall of House Targaryen in Robert’s Rebellion, Tywin at last was
in a position to see his daughter become Queen, marrying Cersei to the newly crowned King
Robert baratheon, and cementing an alliance that brought stability and peace to Westeros
for many years.
Cersei, though still in a relationship with her brother, was excited to be marrying a
war hero and king, eager to start a life with her new husband.
But Robert proved a poor husband saying the name of another woman, Lyanna Stark during
their first night together.
Cersei then realized he was not the man she expected and over the years the relationship
deteriorated further.
Robert, who’d chosen to leave the responsibility of running the kingdom to the hand of the
king jon arryn, spent his time in blissful debauchery, bedding many different woman and
fathering a number of bastard children.
Cersei meanwhile, continued her incestuous relationship with her brother Jaime, and gave
birth to 3 pureborn lannisters, which she passed off as children of her husband the
King.
On one occasion, the queen truly did become pregnant with Robert’s child, but she’d
grown so bitter and resentful towards him that she sent for a woman to help cleanse
her of the problem.
Robert’s brother Stannis, seeing all the dark haired children Robert was fathering,
and their likeness to their father, he found it odd all 3 of his legitimate children where
blond with no discernable Baratheon traits whatsoever.
He began to investigate alongside Jon Arryn and coming to suspect the children were not
of the royal line.
However Jon Arryn soon fell ill and died in 298 AC.
Stannis, suspecting that the Lannisters poisoned him, left the capital for Dragonstone.
The Starks of Winterfell also came to believe the Lannisters were responsible, when Jon
Arryn’s life Lysa wrote them a letter suggesting they were behind the assassination.
In truth however, it was Petyr Baelish, called Littlefinger, who was orchestrating events
from behind the scenes, convincing Lysa to poison her own husband, then pitting the Stark
and Lannister factions against each other.
After the death of Jon Arryn, King Robert and his family travelled north to Winterfell,
where he named his old friend Eddard Stark as the new Hand of the King.
During their time at the fortress Cersei laid with her brother in a secluded area of the
broken tower, but were discovered by young Bran Stark who enjoyed climbing up the walls
of the fortress.
Jaime, in an attempt to keep their secret relationship from being exposed, pushed Bran
from the tower window, leaving him in a coma.
With the boy still unconscious, they began their return journey south, but while in the
riverlands, Arya’s direwolf Nymeria attacked Prince Joffrey Baratheon.
In order to avoid punishment, Arya released her companion into the wild.
However as a result, Cersei had Sansa’s direwolf Lady killed in retribution.