Highgarden

Highgarden is the seat of House Tyrell in the Reach on the Mander River. The Ocean Road meets the Roseroad at Highgarden.

Concept art portraying Highgarden Castle

It was once the seat of House Gardener, but when that line was destroyed on the Field of Fire, Harlen Tyrell, the steward of the Gardeners surrendered it to Aegon I. He received it and the title of lord paramount of the reach for that action.