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Kaikesi
In Hinduism, Kaikasi ( Devanagari: , IAST: , was the mother of Ravana.She is also known as Nikasha ( Devanagari: निकषा) and Keshini ( Devanagari: केशिनी).
She was the daughter of Rakshasa Sumali and his wife Ketumati. she schemed with her parents to seduce the Rishi Vishrava and through him, produce powerful, demonic offspring. Vishrava left his wife Ilavida and his son Kubera to marry Kaikesi and through her, fathered Ravana, Vibhishana, Kumbhakarna and a daughter, Shurpanakha.
When Ravana dethroned Kubera and crowned himself King of Lanka, a disgusted Vishrava disowned his demonic family and returned to Ilavida for good.