Along with several of Lord Frey's other daughters and granddaughters, Robb Stark had the option of marrying her. When he arrives at the Twins for his uncle Edmure's wedding, Robb apologizes for his slight against them. When introducing Merry, Lord Walder calls her Wertha, Walra, and Waldina before she meekly corrects him, though he quickly dismisses her. However, during the wedding feast she sits at the main table alongside Walder Frey's wife, Lord Walder himself, and the newlywed couple - the only one of Lord Walder's children (other than the bride Roslin) to sit as his table during the wedding.
Merry is among the female Freys serving wine to the male relatives at "Walder's" banquet. She is seen horrified watching the men succumb to poison in the wine, and as Walder Frey turns out to really be Arya Stark wearing his face.
|Season Three appearances|
|Valar Dohaeris||Dark Wings, Dark Words||Walk of Punishment||And Now His Watch Is Ended||Kissed by Fire|
|The Climb||The Bear and the Maiden Fair||Second Sons||The Rains of Castamere||Mhysa|
|Season Six appearances|
|The Red Woman||Home||Oathbreaker||Book of the Stranger||The Door|
|Blood of My Blood||The Broken Man||No One||Battle of the Bastards||The Winds of Winter|
|Season Seven appearances|
|Dragonstone||Stormborn||The Queen's Justice||The Spoils of War|
|Eastwatch||Beyond the Wall||The Dragon and the Wolf|
In the books
In the A Song of Ice and Fire novels, there is a granddaughter of Lord Walder named Merianne Frey, who is also known as Merry, who is eleven years old (not to be confused with Marianne Vance, daughter of Walder's daughter Maegelle, whose first name is spelled with an "a" not an "e"). She is the daughter of Ser Whalen Frey and Sylwa Paege. Whalen is the third child of Lord Walder's fourth wife, Alyssa Blackwood. Lame Lothar Frey is Walder's eldest child with Alyssa, making him Whalen's older brother and Merianne's uncle.
Merry was one of the Frey women presented to Robb Stark when he came to the Twins for Lord Edmure Tully's wedding. When she corrects her grandfather on her name, he refers to her as "Noisy", rather than dismissing her.
|Seat:||The Twins · Riverrun||Lands:||The Riverlands|
|Title(s):||Lord of the Crossing · Lord of Riverrun · Lord Paramount of the Trident|
|Current members:||Arwaya Frey · Derwa Frey · Freya Frey · Janeya Frey · Marianne Frey · Merry Frey · Neyela Frey · Olyvar Frey · Roslin Frey · Sarra Frey · Serra Frey · Shirei Frey · Walda Frey · Waldra Frey · Waldron Frey · Ryger Rivers|
|Deceased members:||Joyeuse Erenford · Lothar Frey · Walda Frey · Walder Frey · Walder Rivers|
|Household:||Malcolm · Talbot|