Mert Kassum, (257, ?) was a merchant in Istanbul / Constantinople / Byzantium.
Mert believed in Hellenistic religion.
He was doing well financially. He owned a house and some fine goods with it. He was considered as a worker, belonging to the laborer caste of the society. He had struggles in accessing safe and well payed jobs and businesses. However, he made many friends. He was a major cultural actor of the time, and known to have autored masterpieces. He was force of nature, and people saw in their body and beauty the incarnation of a god. He was iron-willed, achieving any goal he set.