The Reach is the most lush and fertile region of Westeros, ruled by House Tyrell from Highgarden. The Tyrells were stewards to House Gardener, the Kings of the Reach before Aegon's conquest. After the last Gardener King was killed on the Field of Fire, the Tyrells surrendered Highgarden to Aegon and were rewarded with both the castle and the position of overlords of the Reach. The wealth and power of the Reach comes from their bountiful harvests of the most sought-after wines and foods. During times of war, the lengthy distance of the Reach and its abundance of foods protects their inhabitants from initial famine and sickness. In a significant political maneuver during the civil war in Westeros and the War of the Five Kings, House Tyrell provides the starving populace of King's Landing with hundreds of carts of food, ensuring the positive image of House Tyrell foremost, and the alliance for the Iron Throne with House Baratheon as secondary. However, the Tyrells were responsible for the starvation in the first place, as part of their plan to help Renly usurp the Iron Throne. The most prominent city in the Reach is Oldtown. It is the oldest city in Westeros, home to the Maester's Citadel, and the previous seat of the Faith of the Seven. Illegitimate children born in the Reach are given the surname Flowers.