Komnenos Dynasty w/ shield - Byzantine Empire T-Shirt

Coat of Arms for the Roman Imperial Komnene dynasty. The double headed eagle has been a Roman symbol of caesaropapism, unification of church and state, since late antiquity, though was never a national flag. It is Anatolian in origin, hailing from the Hittites, but via the usage of the Roman Empire many other countries adopted it as well, such as the Holy Roman Empire, the Seljuk Sultanate and their Rumish successors, and the Russian Empire.