House Tyrell

House Tyrell are the family that has traditionally been stewards to the Gardeners of Highgarden. They have earned their status through the prowess at arms of the Andal knight Ser Alester Tyrell, who was appointed sworn shield to King Gwayne V Gardener in the aftermath of the Andal Invasion.

Early History
After the Coming of the Andals, the knight Ser Alester Tyrell swore his sword to the King of the Reach, Gwayne V Gardener. His heirs were able men as well, notably his son Gareth Tyrell who eschewed knighthood for books. His own son, Leo Tyrell, followed in his father's footsteps and served as Steward of Highgarden. So impressed was King Gwayne V's successor that he issued an edict making the High Stewardship of Highgarden a hereditary office, to be given to Leo Tyrell's sons in their time.

High Stewards
As High Stewards the Tyrells have been loyal and able hands to the Gardeners. It was a Tyrell, Ser Osmund Tyrell, who while High Steward put an end to the war between House Peake and House Manderly, reclaiming the ruins of Highgarden and banishing the Manderlys from the Kingdom of the Reach. Ser Osmund appointed a new Gardener King himself, rather than taking power in the chaotic succession period-- this was King Mern VI Gardener.

King Mern VI ruled for a long time, and beside him were three successive Tyrells who proved vital in the reconstruction of Highgarden and the reconstitution of House Gardener's rule in the Reach. King Mern VI was so pleased with their service and the flourishing of the Reach that he granted his High Steward the hand of one of his daughters in marriage, the first such link and one that gave the Tyrells cause to boast of having the blood of Garth Greenhand running in their veins. Subsequently, House Gardener and House Tyrell have intermarried nine more times.