Saint Jadorus suffered martyrdom with Saint Isidore (not Isidore of Pelusium) in the reign of Decius (249-251).
Your holy martyr Jadorus, O Lord, / through his suffering has received an incorruptible crown from You, our God. / For having Your strength, he laid low his adversaries, / and shattered the powerless boldness of demons. / Through his intercessions, save our souls!