She grew up the only child of a farmer, her mother having died in childbirth, nearby the village of Eastcroft. It was in Eastcroft that she and Nathaniel met when she was eighteen. The two quickly fell in love. Nathaniel's father uprooted her family from Eastcroft upon learning of their love, but not before Catelyn grew with child. In Maidenpool, where they still live, she gave birth to their daughter, Mya Rivers.
Catelyn and Mya were relatively untouched by the War of the Lion's Ascent.
The second era contained no events for Catelyn.
Catelyn began to heard rumors of Nathaniel's promotion to the Hand of the King during the third era, and correctly guessing them to be correct sent him a letter to congratulate him. Nathaniel confirmed the rumors in his reply back, but that letter turned out to be their last correspondence. Catelyn's father died of sickness soon after.
During a trip to the local market, Catelyn and Mya were attacked by a pair of thugs, and while they were not injured the confrontation, along with her father's death, left Catelyn incredibly paranoid. Catelyn's means of writing Nate were soon after destroyed in a fire, prompting Catelyn to decide to travel to King's Landing herself, with Mya in tow.
Edmund of Eastcroft - Father
Mya Rivers - Daughter