Great House Tyrell:

House Tyrell is one of the Great Houses of Westeros. It rules over the Reach, a vast, fertile, and heavily-populated region of southwestern Westeros, from their castle-seat, Highgarden. It is currently led by Lord Mace Tyrell. His son Loras is a noted tournament knight (and secretly, the lover of Lord Renly Baratheon). Mace's daughter Margaery married Renly when he crowned himself king, to cement the alliance between Renly and her father. Following Renly's death, Margaery was then married to King Joffrey Baratheon before his assassination at his wedding feast.

The Tyrell sigil is a golden rose on a green field. Their motto is, "Growing Strong".

Great Houses:
http://v1.steam.hlxgame.cc/groups/houseArryn_
http://v1.steam.hlxgame.cc/groups/houseBaratheon_
http://v1.steam.hlxgame.cc/groups/houseBolton_
http://v1.steam.hlxgame.cc/groups/houseGreyjoy_
http://v1.steam.hlxgame.cc/groups/houseLannister_
http://v1.steam.hlxgame.cc/groups/houseTully_
http://v1.steam.hlxgame.cc/groups/houseTyrell_