Hagnothemis
According to Plutarch, six years after Alexander the Great's death, Hagnothemis () claimed that Antipater was responsible for poisoning Alexander, and that it was Aristotle who instigated this and procured the poison. Hagnothemis claimed he had heard King Antigonus speak of this, and that the poison was "deadly cold" water distilled from a rock and so "cold and penetrating" that it could only be kept in an ass's hoof. Though the claim spread widely in antiquity, it is now considered unlikely. Other than this brief passage in Plutarch, we have no further biographical details for Hagnothemis. References

4th-century BC Greek people
Year of birth unknown
Year of death unknown

Conspirators against Alexander the Great