From A Wiki of Ice and Fire
The Three Singers are the three weirwood trees located in the godswood of Highgarden. They are large, ancient, and graceful, and have grown so entangled over time that they look like one single tree, albeit with three trunks. Located beneath the three weirwood trees is a pool.
According to legend, Garth Greenhand planted the Three Singers.
- ↑ 1.0 1.1 The World of Ice & Fire, The Reach: Highgarden.