Alexios' father declined the throne on the abdication of Isaac, who was accordingly succeeded by four emperors of other families between 1059 and 1081. Alexios was the son of Ioannis Komnenos and Anna Dalassena, and the nephew of Isaac I Komnenos (emperor 1057â1059). Alexios also instituted a new copper coinage (although many of the first examples were struck of lead) to replace the old follis. A gold hyperpyron coin of Alexios I Komnenos (r. 1081-1118 CE). Alexios' father declined the throne on the abdication of Isaac, who was thus succeeded by four emperors of other families between 1059 and 1081. Hyperpyron of Alexios I Komnenos (1081-1118). "In 1092, Alexios I Komnenos (r. 1081â1118) reformed the imperial coinage, introducing the hyperpyron gold coin instead of the devalued histamena and tetartera. Un determined DOC- l 5,19g Maurice Alexios I Komnenos BAT Con II coinage DOC25 l 3,16g John II Komnenos BAT Con II coin age var. Î½ÏÏ, 1056 â 15 August 1118ânote that some sources list his date of birth as 1048), was Byzantine emperor from 1081 to 1118, and the Alexios I Komnenos.jpg founder of the Komnenian dynasty . On the obverse, Christ is seated on a backed throne. Detailed information about the coin Hyperpyron, Alexios I Komnenos, Byzantine Empire, with pictures and collection and swap management : mintage, descriptions, metal, weight, size, value and other numismatic data The term "Bezant" became a slang term for a Byzantine gold coin and sometimes for any gold coin â¦ Î½ÏÏ, 1056 â 15 August 1118ânote that some sources list his date of birth as 1048), was Byzantine emperor from 1081 to 1118, and although he was not the founder of the Komnenian dynasty, it was during his reign that the Komnenos â¦ B DOC !Ob 3 3,39g HT Tes Type A DOC 16 l 1,54g Manuel I Komnenos BAT Con I coinage var. A DOC !Oa 3 3,72g BAT Con II coin age var. AÎEÎIê¶ ÎECÎ OT Tê¶ KM (Alexios Despot, "Tê¶ KM" is "Of Comnenus") When the Crusaders moved east and into the territory of the Christian Byzantine Empire and the Moslem Empires they encountered gold coins in routine use. Hyperpyron (âsuper-refined coinâ): Introduced by Alexios I Komnenos in 1092 to replace the histamenon; the hyperpyron was of the same standard weight as the solidus, but with less gold content (20.5 karats). Alexios was the son of the Domestic of the Schools John Komnenos and Anna Dalassene, and the nephew of Isaac I Komnenos (emperor 1057-1059). 1407) Alexios I Komnenos (1048-1118), Legendary Byzantine Emperor (1081-1118): "EUROPA Silver Coin Series" or "Europa Coin Programme" or "European Star Programme": The Bank of Greece issues a Silver 10 Euro Proof Coin featuring the Early Gothic Era (1150-1250): Date of Coin issue: 13.07.2020: In the Palaiologan period (1261â1453) the hyperpyron, too, became debased, dropping to twelve karats.