From A Wiki of Ice and Fire
|Title||Lord of the Rain House|
|Book||Fire & Blood (mentioned)|
Morgan Wylde was the Lord of the Rain House and head of House Wylde during the early reign of King Jaehaerys I Targaryen.
After his daughter, Coryanne, was deflowered by a stableboy, Lord Morgan had the man gelded, and Coryanne was confined to her chambers.