Having won a victory over the Persians in Anatolia and concluded a peace treaty with the Avars, Heraclius began to prepare for a new campaign.On March 25, 624, he left Constantinople with the goal of capturing Armenia.
Immediately before the campaign itself, the emperor of Byzantium made attempts to conclude peace with Khosrow, but nothing came of it.Heraclius, together with his new second wife and niece Martina and two of the children from his first marriage (with Fabia/Eudokia), departed from Constantinople on 25 March 624.
His daughters Epiphania and Eudokia by his first marriage (but apparently not his son Heraclius Constantine) accompanied him as far as the vicinity of Nikomedia where they celebrated Easter on 15 April.
[11] Byzantine army was drained of blood and Heraclius was forced to postpone the invasion of Persia until the following year.
[8] The Byzantines won, but the war did not end there, the following year the Persians made a last attempt to attack right into the heart of Byzantium - Constantinople.