Heraklonas

Heraklonas (626–642), son of Heraclius and the empress Martina, was briefly Byzantine emperor in 641. Crowned co-emperor in 638, he succeeded jointly with his half-brother Constantine III when Heraclius died in February 641.

When Constantine died in May, Heraklonas became sole ruler under Martina's regency. The Arab conquest of Egypt, Martina's monothelite policy and rumours that Constantine had been poisoned turned Constantinople against them.

In autumn 641 the general Valentinus deposed Heraklonas, had his nose cut off and exiled him to Rhodes, placing Constans II on the throne. Heraklonas died there in 642.