From A Wiki of Ice and Fire
|Died||In 300AC, at The North|
|Spouse||Betharios of Braavos|
|Book(s)|| A Clash of Kings (Mentioned)|
A Dance with Dragons (Appears)
Symond Frey is the seventh son of Lord Walder Frey and is the second son born of Lord Walder's marriage to Amarei Crakehall. He is married to Betharios of Braavos and they have three children. He is a counter of coins and spymaster.
A Dance with Dragons
Along with Rhaegar Frey and Jared Frey, Symond travels to White Harbor to return the bones of Wendel Manderly, killed at the Red Wedding, to his father, Wyman Manderly. The Freys also want to ensure White Harbor bends the knee to the Iron Throne. They offer Wyman a Frey bride and betrothals of Rhaegar Frey to his granddaughter Wynafryd and Little Walder Frey to Wyman's other granddaughter, Wylla.
When Davos Seaworth arrives in White Harbor to try and persuade House Manderly to support Stannis Baratheon, the three Freys are already present. Wyman publicly supports the Freys, as the Iron Throne holds hostage his surviving son and heir, Wylis Manderly. Wyman fakes Davos's death by having a criminal with similar features executed and his head dipped in tar so the Freys falsely believe him to be Davos. As a reward for proving his loyalty, Queen Cersei Lannister has Wylis Manderly returned to White Harbor.
Wyman Manderly later reveals to Davos that Symond the coin counter had been bribing several of Wyman's servants and two knights to spy on the Lord of White Harbor for the Freys. A handmaid of Symond's wife, Betharios, even found her way into the bed of Wyman's fool.
According to Wyman Manderly, Rhaegar, Jared and Symond were given palfreys as "guest gifts" when the three Freys departed White Harbor. Wyman claims they were all to meet at Winterfell for the wedding of "Arya Stark" to Ramsay Bolton. They have not been seen since, although Aenys Frey and Hosteen Frey, who were present at Winterfell, suspect Wyman Manderly of foul play.
Wyman Manderly presents three huge pies at the wedding feast while requesting a song from the singer Abel about the Rat Cook, implying the three Freys were actually present at the wedding after all.