Lord Jon Mooton was a head of the noble House Mooton and Lord of the castle of Maidenpool.


Lord Jon was the brother of a Lord Mooton before the War of Conquest. House Mooton sided with House Darklyn against King Aegon I Targaryen, but the Lord was killed in battle by Orys Baratheon, and Jon bent the knee to House Targaryen as a result, making him one of the first riverlords to bend the knee to the dragons, after Edmyn Tully.

Jon served as a high ranking officer in the Targaryen army, and was given control of the Targaryen forces at the Field of Fire, after Aegon and his sister-wives, Visenya Targaryen and Rhaenys Targaryen, took their dragons to the sky to burn the armies of House Lannister and House Gardener. Jon was tasked with killing any enemies that tried to flee the battle.