- "He took a mermaid to wife and stole fire from the Storm God and carved the first ship from a demon tree that fed on human flesh."
- ―Euron Greyjoy
In the books
In the A Song of Ice and Fire novels, Ygg's story is the same. Legend states that the Grey King carved his first longship from Ygg's hard pale wood. It is unknown if Ygg was a weirwood, as the First Men were known to hang the entrails of the condemned in the branches of heart trees.