A Court or House of...

What if Rhysand's sister never died, but instead was transferred to a different world. That world being Midgard.
Trapped in this strange world she seeks help in the form of the Autumn King.
Marrying him was the safest thing for her, as a queen she's safest and atleast this way she's always reminded of her true home and brother in the form of her son.
Prince Ruhn Danaan, who shares a striking resemblance to Rhysand.

CC2 spoilers
Most characters belong to Sarah J. Maas