Constantine IV

Constantine IV (* 650, † 685; Latin Flavius ​​Constantinus, Greek Κωνσταντίνος Δ ') was 668-685 Byzantine emperor. The him sometimes ascribed nickname Pogonatos ( Πωγωνάτος, "the bearded " ) is likely to be related in truth his father Constans II.

Constantine IV was the son of Emperor Constans II's; this had moved during the last years of his life his residence to Sicily and demanded in vain, his son and co-emperor should follow him there. As Constans was murdered 668, the Armenians Mizizios was proclaimed Augustus in Syracuse. After identification of some sources Constantine IV should be personally then sailed with a fleet of Constantine Opel to Sicily, to quell the usurpation; if so, is controversial in research. The only certainty is that Mizizios after a few months came to an end.

Constantine, who deposed his two brothers and co-emperor Heraclius and Tiberius 681 and let maim, to exclude them from power could post some important successes for themselves. He fought 678 from the first siege of Constantinople by the Arabs, where he could strike their fleet devastating. Then, the Arabs had to sign a ( 685 renewed ) peace treaty, which would be to them a few years earlier appeared unacceptable to him. Another success was the integration of Sermesianoi, apparently descendants of the Roman provincial population in Pannonia and settled there 616 Roman prisoners who were taken under the leadership of the Bulgarian princes enveloping 680 to Macedonia, where enveloping had built a Khaganate. Also one of Berbers and the Exarch of Carthage jointly scored defensive success against the Arabs in Biskra 683 in North Africa brought a little respite. Church was political reconciliation with the Pope ( 681 ), which was based on the rejection of monotheletism.

Only the incidence of the Proto-Bulgarians 679 under the Kuvers brother, Khan Asparuch, in the now largely slawisierte province of Moesia Constantine IV could not stop, so he had to recognize the newly established Bulgarian Kingdom. 680 he recognized the Lombard kingdom in Italy as its own. Constantine died in 685

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