Keywords: Komnenos-Isaac-Arms.svg The alleged arms of the Komnenos Comnenus family under en Isaac I Komnenos 1057-1059 A military family originating from en Paphlagonia the en Komnenos dynasty of en Byzantine Emperors began when Isaac Komnenos a general of the Eastern armies of en Michael VI led a successful coup against Michael and was proclaimed emperor in 1057 He is credited as being the first en Byzantine Emperor to have adopted the en double-headed eagle as an emblem Or a double-headed eagle Sable The introduction of the double-headed eagle by Isaac Komnenos is a popular tradition date but it has no historical support N Zapheiriou The Greek Flag from Antiquity to present 1947 pp 21 “22 Transferred from http //en wikipedia org en wikipedia; transferred to Commons by User QWerk using http //tools wikimedia de/~magnus/commonshelper php CommonsHelper <br/> Original text self-made 2008-02-09 original upload date <br/> Original text 09 02 2008 Dragases talk Original uploader was Dragases at http //en wikipedia org en wikipedia en wikipedia Dragases en original upload log page en wikipedia Komnenos-Isaac-Arms svg 2008-02-09 11 59 Dragases 504×504×0 302988 bytes <nowiki> self-made ~~~ </nowiki> Black and yellow flags with animals Coats of arms of the Byzantine Empire Flags with double-headed eagles Nobility of Byzantium Comnenid dynasty Family Emblems |