Palaeologoi eagle XV c Byzantine miniature

The

Ecumenical Patriarchate The Ecumenical Patriarchate of Constantinople ( el, Οἰκουμενικὸν Πατριαρχεῖον Κωνσταντινουπόλεως, translit=Oikoumenikón Patriarkhíon Konstantinoupóleos, ; la, Patriarchatus Oecumenicus Constanti ...

and

Mount Athos Mount Athos (; el, Ἄθως, ) is a mountain in the distal part of the eponymous Athos peninsula and site of an important centre of Eastern Orthodox monasticism in northeastern Greece. The mountain along with the respective part of the peni ...

, and also the

Greek Orthodox Church The term Greek Orthodox Church ( Greek: Ἑλληνορθόδοξη Ἐκκλησία, ''Ellinorthódoxi Ekklisía'', ) has two meanings. The broader meaning designates "the entire body of Orthodox (Chalcedonian) Christianity, sometimes also cal ...

es in the

diaspora A diaspora ( ) is a population that is scattered across regions which are separate from its geographic place of origin. Historically, the word was used first in reference to the dispersion of Greeks in the Hellenic world, and later Jews after ...

under the Patriarchate use a black

double-headed eagle In heraldry and vexillology, the double-headed eagle (or double-eagle) is a charge associated with the concept of Empire. Most modern uses of the symbol are directly or indirectly associated with its use by the late Byzantine Empire, origi ...

in a yellow field as their flag or emblem. The eagle is depicted as clutching a sword and an orb with a crown above and between its two heads. An earlier variant of the flag, used in the 1980s, combined the double-headed eagle design with the blue-and-white stripes of the

flag of Greece The national flag of Greece, popularly referred to as the "blue and white one" ( el, Γαλανόλευκη, ) or the "sky blue and white" (, ), is officially recognised by Greece as one of its national symbols and has nine equal horizontal stri ...

.Flag of the Orthodox Church of Greece
Tomislav Todorović, 2 June 2015 The design is sometimes dubbed the "Byzantine imperial flag", and is considered—inaccurately—to have been the actual historical banner of the

Byzantine Empire The Byzantine Empire, also referred to as the Eastern Roman Empire or Byzantium, was the continuation of the Roman Empire primarily in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantinopl ...

. The double-headed eagle was historically used as an emblem in the late Byzantine period (14th–15th centuries), but not on flags; rather it was embroidered on imperial clothing and accoutrements by both the

Palaiologos The House of Palaiologos ( Palaiologoi; grc-gre, Παλαιολόγος, pl. , female version Palaiologina; grc-gre, Παλαιολογίνα), also found in English-language literature as Palaeologus or Palaeologue, was a Byzantine Greek f ...

emperors of the Byzantine Empire and the Grand

Komnenos Komnenos ( gr, Κομνηνός; Latinized Comnenus; plural Komnenoi or Comneni (Κομνηνοί, )) was a Byzantine Greek noble family who ruled the Byzantine Empire from 1081 to 1185, and later, as the Grand Komnenoi (Μεγαλοκομνην� ...

rulers of the

Empire of Trebizond The Empire of Trebizond, or Trapezuntine Empire, was a monarchy and one of three successor rump states of the Byzantine Empire, along with the Despotate of the Morea and the Principality of Theodoro, that flourished during the 13th through ...

, descendants of the Byzantine imperial family of the same name. The actual flag of the Palaiologan-era Byzantine Empire was based on the tetragrammatic cross in gold on a red background. This design also forms the basis for another flag used by the

Orthodox Church of Greece The Church of Greece ( el, Ἐκκλησία τῆς Ἑλλάδος, Ekklēsía tē̂s Helládos, ), part of the wider Greek Orthodox Church, is one of the autocephalous churches which make up the communion of Eastern Orthodox Christianity. Its ...

, with the added inscription of TOYTῼ NIKA (i.e. ''

in hoc signo vinces "''In hoc signo vinces''" (, ) is a Latin phrase conventionally translated into English as "In this sign thou shalt conquer". The Latin phrase itself renders, rather loosely, the Greek phrase "", transliterated as "''en toútōi níka''" ( ...

'').

References

See also