Final answer:
In Aristophanes' play 'Lysistrata', the Spartan woman who allies with Lysistrata to end the Peloponnesian War by withholding sex from their men is named Lampito.
Step-by-step explanation:
The Spartan woman who allies with Lysistrata in Aristophanes' comedy to lead the women of Sparta and Athens in their political campaign to end the Peloponnesian War is named Lampito. In this play, the women, tired of the ongoing war and the absence of their men, conspire to withhold sexual privileges to force their male counterparts into negotiating peace.
Lysistrata unites the women of Greece in this daring act, leveraging the power they had in their domestic spheres to influence important political outcomes, thereby reflecting on the role and influence of women in ancient Greek society.