This article might be a little outdated, or there was a translation error for the Erajan letter. The note from Lady Clara refers to her home in the south, not the North. It goes:
To my first child,
You are my day, my night, and my world.
To start your future without me, I gift you my house in the South.
To start my future without you, I bid you to heed my words: you are an odd child.
You are not of House Sinclair nor House Epsen. Forget your northern goals.
Your name is Je Ari. Your future is to the south, away from Fenn. Your dreams are away from your father.