at the hand of

[…]Alaeddin ate and drank and was cheered and after he had rested and had recovered spirits he cried, "Ah, O my mother, I have a sore grievance against thee for leaving me to that accursed wight who strave to compass my destruction and designed to take my life. Know that I beheld Death with mine own eyes at the hand of this damned wretch, whom thou didst certify to be my uncle;[…]