What was the name of the King's wife who persuaded him to make Bharatha king?

Kaikeyi, one of King Dasharatha's three wives in the Ramayana, was manipulated by her maid Manthara into demanding that her son Bharatha be crowned king instead of Rama. She reminded the king of the two boons he had promised her years earlier, using them to banish Rama to the forest for 14 years. Kausalya was Rama's mother, Sumithra was Lakshmana's mother, and Kooni (Manthara) was the manipulative maid who instigated Kaikeyi.