Maximus 'the Merciless' was the slavemaster of the Mytrosian Minotaur Slave Market.
He had the ability to transfer Oaths of Service between one person to another due to a magical document that was granted to him by Gaius on behalf of Sydon.
He was killed by the Oracle's Chosen during the attack on the slave market; though the Lady of Coins has claimed responsibility for the attack and thus his death.