Konstantinos Bourtzes, magistros and doux of Antioch, 2nd quarter 11th century. Seal (Lead, 36 mm, 24.94 g, 12 h). ...M/H/TPI/O, Nimbate facing bust of Saint Demetrios, holding a spear over his right shoulder, and resting a shield on his left arm. Rev. +KⲰN MA/ΓICTPOC S / ΔOVΞ ANTI/OXЄIAC O / [R૪PTZHC] in five lines. BBÖ II p. 262. Cheynet/Theodoridis 33. Cheynet, Société p. 352-353. Cf. Cheynet, Antioche 48 (same general type, from a different boulloterion). A massive Byzantine seal from an important military official. Struck on an irregular flan and with some flatness, otherwise, very fine.