|Title(s)||Lord of the Crossing|
|Born||At the Twins|
|Died||In 212–254 AC|
At least two more daughters
|Book(s)||The Mystery Knight (appears)|
Lord Frey was lean and elegant.
In 212 AC, Lord Frey came with his retinue, which included his son and heir, his brother, his married daughters and their husbands, as well as his nephew, to Whitewalls to attend the wedding of his fifteen years old daughter to Lord Ambrose Butterwell. It was rumored that Lord Frey married off his daughter after her young brother caught her having intimate relations with a scullion at the Twins.
The marriage was used by Blackfyres sympathizers as an opportunity to gather those who had fought for the Black Dragon during his rebellion and those who resented the rule of Hand of the King, Brynden Rivers. The organizers of the wedding tourney, mainly Ser Tommard Heddle and Lord Gormon Peake, convinced Lord Butterwell to name his dragon egg as the prize for the winner of the tourney. Their plan was for the Black Dragon's eldest living son, Daemon, to win the tourney and claim the egg for himself. Once the egg hatch like Daemon dreamed, the conspirators would use Butterwell's gold and the swords of House Frey to start the Second Blackfyre Rebellion. They hoped the Lothstons of Harrenhal and the Brackens of Stone Hedge, who did not attend the wedding, would be swayed by those events and join their effort in putting a Blackfyre on the Iron Throne. Although both Lord Frey and Lord Butterwell were aware of this plan and let it happen, they doubted it would work.
During the wedding feast, Lord Frey was seated on the dais and made a toast. The next day, he attended the tourney from his seat next to Lord and Lady Butterwell in the viewing stand.
When the squire Egg revealed himself as Prince Aegon Targaryen, and told Lord Frey and Butterwell about an army led by his father, Prince Maekar Targaryen, was marching on Whitewalls, Lord Frey fled the castle. Though Egg made up the story to frighten both Lords, a real army led by Brynden Rivers quickly arrived and took control of the castle.
Lord Frey was presumably taken captive by this army while fleeing, as he is later seen in the Hand's pavilion. Bloodraven allowed Lord Frey to go home, but warned him they would speak again. It is unknown what punishment Lord Frey has suffered for his part in the rebellion.
After his death, Lord Frey was succeeded by his son, Walder.
The king! Lord Butterwell, our gracious host. May the Father grant him long life and many sons. Lady Butterwell, the maiden brick, my darling daughter. May the Mother make her fertile. I shall want a grandson before the year is out. Twins would suit me even better, so churn the butter well tonight, my sweet. I give you the King's Hand, Brynden Rivers. May the Crone's lamp light his path to wisdom.—Lord Frey's toast
Brynden: You have my leave to go as well, Lord Frey, we will speak again later.
Lord Frey: As my lord commands.—Brynden Rivers and Lord Frey