The Lost Royal Dynasty Behind Westeros’ Reach and Highgarden Legacy in ‘A Song of Ice and Fire’

Long before the Tyrells raised their golden rose banner over Highgarden, House Gardener ruled as the ancient Kings of the Reach for thousands of years. Their bloodline is intricately woven into the backstory of nearly every noble house that fans recognize in ‘Game of Thrones‘ and ‘House of the Dragon‘.

Understanding the significance of House Gardener helps clarify why Highgarden holds such importance in George R.R. Martin’s universe, and why many prominent houses in the south trace their lineage back to a legendary figure adorned with a crown of flowers.

House Gardener’s origins can be traced back to Garth the Gardener, the founder of both House Gardener and Highgarden. According to legend, he was the eldest son of the mythical Garth Greenhand, the High King of the First Men, believed to be the ancestor of numerous houses in the Reach.

Garth established his home on the hill overlooking the Mander, which would eventually be known as Highgarden, and donned a crown made of vines and flowers. From this singular figure, a royal lineage emerged, dominating the region for millennia.

The magnitude of his legacy is immense. In the novels, many of the great noble Houses from the Reach claim descent from Garth Greenhand and House Gardener, with House Tyrell and House Florent being the most notable, alongside houses like Rowan and Oakheart.

For generations, House Gardener maintained power through a combination of conquest and diplomacy. Beginning with the legendary first king Garth the Gardener, the Gardeners ruled through both war and peace, assimilating the Andal invaders over the years.

Their court was filled with memorable figures. King Gyles III Gardener presided over Highgarden at the height of its power, while King Garth X Gardener, known as Garth Greybeard, witnessed the house’s decline during his lengthy reign. Other kings, such as Perceon III Gardener, who exiled House Manderly from the Reach, exemplify the family’s extensive political influence.

The seat of their power was as symbolic as their crowns. Many Gardener kings, along with one queen, sat upon a living throne known as the Oakenseat, wearing crowns of vines and flowers in times of peace, and switching to crowns of bronze thorns, later iron, when going to war. Their emblem was a green hand on a white field, inspiring the chivalric Order of the Green Hand.

House Gardener’s influence extended beyond a single bloodline. Initially centered on Highgarden and the Mander river, the Gardeners leveraged their claimed descent from Garth the Gardener to assert dominance over neighboring kings and lords.

However, House Gardener’s tale does not conclude peacefully. Their downfall occurred during Aegon’s Conquest, when the last Gardener king forged a fateful alliance. King Mern IX Gardener and King Loren Lannister of the Rock combined their forces to confront the Targaryen army, which they outnumbered five to one.

For a brief moment, it seemed the united southern armies might prevail. The battle initially favored them until Aegon unleashed all three of his dragons simultaneously, turning the battlefield into a funeral pyre as thousands perished, including Mern and his heirs.

The devastation at what became known as the Field of Fire was staggering. The dragons killed four thousand men from the combined Lannister and Gardener forces, including King Mern, who was incinerated when Aegon unleashed Vhagar, Meraxes, and Balerion the Black Dread against the united armies of the Reach and the Rock.

Even the physical symbols of Gardener power did not survive unscathed. The Oakenseat itself was destroyed during a later Dornish raid on Highgarden, an event long remembered as the lowest point in the house’s history, according to details compiled by TV Tropes.

With the male line extinguished on the battlefield, the fate of Highgarden rested with those loyal at the castle gates. Harlen Tyrell, steward to the Gardeners, surrendered control of Highgarden to Aegon, who rewarded him by elevating House Tyrell to the new ruling house of the Reach, much to the dismay of House Florent.

This fury was not without justification. The Tyrells can only trace their lineage to the Gardeners through the female line, while the Florents are directly descended from the Gardeners through a male line, as a younger Gardener brother had married into the Florent family. However, because the Tyrells chose to yield the castle peacefully, the Targaryens appointed them as rulers of the Reach instead of the Florents.

This single decision reshaped the political landscape of the Reach for centuries, and its effects still resonate in how fans interpret the rivalry between the Tyrells and Florents throughout ‘A Song of Ice and Fire’ and ‘Game of Thrones’. It also underscores why Highgarden carries such immense symbolic weight, as the Reach is the largest and most fertile region in Westeros, and controlling it means controlling the grain that feeds King’s Landing and the military resources that could sway any conflict.

As ‘House of the Dragon’ continues to delve into the rich history of Westeros, it’s clear why the tale of House Gardener remains significant. Do you think the fall of House Gardener at the Field of Fire deserves a flashback in a future season of ‘House of the Dragon’?