Who was the last king of the Reach before Aegon's Conquest?
Mern IX Gardener was the last king of the Reach. When the last of the Gardener's lineage died, the house went extinct and the Reach was assigned to House Tyrell to rule.
<s>[QUESTION] Who was the last king of the Reach before Aegon's Conquest? [CONTEXT]  [ANSWER] Mern IX Gardener was the last king of the Reach. When the last of the Gardener's lineage died, the house went extinct and the Reach was assigned to House Tyrell to rule. </s>