Many theories have been proposed to explain the success of the Theban silk industry from the twelfth century onward. To contribute to this discussion in the context of recent research developments, this article explores the Theban metropolitan's hypothetical contribution to the industry through the case study of John Kaloktenes, who initiated a series of projects during his tenure (before 1166–c.1190). The analysis of three of these projects suggests that they might have been designed to support the industry. Thus, this article proposes the working hypothesis that Thebes's industrial success might have benefited substantially from the local metropolitan's active promotion.