From A Wiki of Ice and Fire
Fortress, Regional Capitol
Highgarden - by Feliche©.
|Location||the The Reach, Westeros.|
|Government||House Tyrell , Feudal Lord.|
|Religion||Faith of the Seven|
Highgarden Castle is the seat of House Tyrell, regional capital of the Reach and heart of chivalry in the Seven Kingdoms. It lies on the Mander and there the Ocean Road meets the Roseroad, making it an important crossroads.
Margaery Tyrell describes the castle as having groves and fountains, shady courtyards, and marble colonnades.
It is filled with singers, pipers, fiddlers and harpers. The stables have a fine selection of horseflesh, and there are pleasure boats to sail along the Mander.