The Good Masters are the ruling elite of the city of Astapor, one of the three cities on the eastern shore of Slaver's Bay, composed of slave-traders. An Astapori slave-trader, Kraznys mo Nakloz, sold Daenerys Targaryen 8,000 Unsullied in exchange for her dragon Drogon. However, she broke the deal and ordered her newly acquired army to slay the Good Masters and sack their city. All of the Good Masters present in the city were killed.
