Constantine Heraclius (Greek: Κωνσταντῖνος Ἡράκλειος, romanized: Kōnstantînos Hērákleios; 626–641), commonly known by the diminutive Heraklonas or Herakleonas (Greek: Ἡρακλ[ε]ωνᾶς), and more rarely as Heraclius II, was the son of Heraclius and his niece Martina. His father had stipulated in his will that both of his sons, Heraklonas and Constantine III, should rule jointly upon his death. Heraclius also specified that his wife, Martina, was to be called "Mother and Empress" insofar as she might have influence at court as well. The emperor Heraclius died in February 641 from edema. When Martina did make the late Emperor's will public she faced staunch resistance to her playing any active role in government, but both Heraklonas and Constantine were proclaimed joint-emperors in February 641 w