Byzantine Pb seal (4.17g, 16mm) N. Synathenos protospatharios and katepano (eleventh century)
Inscription on both sides of the seal:
+Κ(ύρι)ε βοήθει τῷ σῷ δούλῳ (πρωτο)σπαθ(αρίῳ) καὶ κατεπάνω τῷ Συναθηνώ.

Katepano (κατεπάνω - literally "supreme", from Latin "caput", meaning "head") - a senior military and official title. In the 10th century, a new the acquired border zones were divided into smaller themes and brought together two or more themes to form large regions, headed by a dux or katepano, respectively called ducates or katepanate, e.g. Antioch covering northern Syria, Mesopotamia, the western bank of the Euphrates, and Chalda. After the military catastrophe in the 11th century, the catepanates consisted only of the fortified Kastron and its surroundings. Under the Palaiologos, katepano was replaced by the title kefale (κεφαλή, "head"), which had supreme civil and military authority within its borders.