The Stoics argued for women’s moral equality, companionate marriage, education, and participation in philosophy. And yet we have no writings from Stoic women, even from the Roman imperial period, when we know of several who could be considered Stoics. This silence of the written record coheres with the centrality within Stoicism of manliness (virtus), exemplified by heroes like Hercules. We must therefore examine indirect evidence, including writings by Stoic men on marriage and society, in order to glean anything about Stoic women. But this chapter suggests that writing tragedy provided the Roman Stoic philosopher Seneca the opportunity to stage the voice of a Stoic woman facing the most crucial choice – between life and death – and responding as her own moral agent. Acting as a Stoic exemplar, Megara, Hercules’ wife, chooses death over a life inconsistent with her ethically determined role.