John Kaloktenes was a 12th-century Byzantine metropolitan who served the city of Thebes. Born in Constantinople to noble parents, Constantine and Maria, he originally lived as a monk in a local monastery. Following his appointment by Patriarch Luke Chrysoberges in 1166, he took on significant ecclesiastical responsibilities, including the filling of five vacant bishoprics. He is widely remembered for his extensive charitable activities and his commitment to public works, which greatly benefited the local population during his tenure.
Life and works
After being appointed to his position, John led an austere life dedicated to service. He established several hospitals and hospices to care for the needy. His civic contributions were equally significant, as he built an aqueduct and water mills, and even diverted the Isminos river. Additionally, he founded a school specifically for girls, demonstrating a commitment to education within his community.
Veneration
Recognized for his compassion, he is often called the New Merciful. He is honored as a saint within the Eastern Orthodox Church and serves as the patron saint of Thebes. His memory is commemorated annually on April 29.