During the First Mongol invasion of Hungary , Matthias and his deputy , archdeacon Albert gathered their army in Esztergom .
During the First Mongol invasion of Hungary , Matthias and his deputy , archdeacon Albert joined Duke Coloman 's troops , marching together to Pest .
During the First Mongol invasion of Hungary , Matthias and his deputy , archdeacon Albert gathered their army in Esztergom and joined Duke Coloman 's troops , marching together to Pest .