"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[src]

Ygg was a demonic tree killed by the Grey King. It is only mentioned in Histories & Lore.


Ygg was a demonic tree that feasted on the flesh of humans. It was killed by the Grey King, who used its bark to build his first ship.[1]

In the books

Ygg is a legendary demon tree who fed on human flesh. According to legend, the Grey King carved the first longship from Ygg's hard pale wood. It is unknown if Ygg was a weirwood, as the First Men of old hung the entrails of the condemned in the branches of heart trees.

See also