The Latin emperor Henry of Flanders (1206-1216) succeeded in averting the Bulgarian danger that menaced Constantinople. He also tried to protect Thessalonika from the attacks of the despotate of Epirus. Molybdobull of Henry of Flanders. 1204-1216.
Zacos, G., Veglery, A., Byzantine Lead Seals, vol. 1, part 1, Basel 1972, p. 102, pl. 28, no. 112a.