David quickly obtained support from the local feudal lords, as a result, Heraclius was forced to nominate David as curopalates. The historian John Katholikos adds that the Armenians nobles also gave him the title of Ishkhan of Armenia. Three years later the nobility overthrew Saharuni and Theodoros Rshtuni took his place as ruler of Armenia.
David's rise to power was facilitated by his support from local feudal lords, leading Heraclius to appoint him as curopalates. The Armenian nobles also recognized David's authority and bestowed upon him the title of Ishkhan of Armenia. Three years later, the nobility replaced Saharuni with Theodoros Rshtuni as ruler of Armenia.