The collection of Byzantine lead seals in the museum of Bergama

In this research, we have studied thirty-one pieces of seal belonging to the Byzantine Period that have been purchased between 1992-1999 and are displayed in the Pergamon Museum. The seal reveals astonishing clues in terms of geographical locations, rank, personal names, religious figures by examining these seals. Studying these seals have released first hand information on the system of hierarcy, goverment institutes, geographical borders, religion and the language utilized within the Byzantine Period. Subsequently, the seals were studied further and has been dated in the following manner; one of the seals was from 6th century A.D., eleven seals from 7th century A.D., five seals from 8th century A.D., seven seals from 10th century A.D., four seals from 11th century A.D. and lastly one seal from 12th century A.D. One of the pieces found have been theorized asan amulet dating to Late Byzantine Period. Through the information gathered the team was able to determine that seals found shed light on Pergamon in relevance to its institutions and surrrounding cities dating between 6th to the 12th century A.D. Keywords: Lead Seal, Byzantine Period, Museum Of Bergama, Western Anatolia, Sixth-Twelfth Centuries A.D., Sigillography, Prosography, Diplomacy, Amulet.