I, For One, Welcome Our New Venomous Overlords! But who could be more venomous than Cesare Borgia and the Borgia family whom reportedly had rings for poisoning

I, For One, Welcome Our New Venomous Overlords! But who could be more venomous than Cesare Borgia and the Borgia family whom reportedly had rings for poisoning (and assassinating) their enemies? Attending social functions has, in some past eras, been a wholly more perilous game than today, even with Covid.