1. Kañcanadevī. Daughter of the king of Benares and sister of the Bodhisatta, Mahākadeana.
With her brothers she renounced the world and lived in a hermitage after her parents' death.
Her story is told in the Bhisa Jātaka (J.iv.305ff).
She was a previous birth of Uppalavannā (J.iv.314).
2. Kañcanadevī. Daughter of the king of Devaputta
On the day of her birth jewels fell from the sky and her body was so bright that no lamps were needed when she was by. She entered the Order when she grew up and became an arahant.
In her past birth, when she was listening to a sermon at the end of celebrations held at Devaputta in honour of the Bowl Relic, a Nāga king fell in love with her. When she refused his attentions, the Nāga wrapt her body with his coils, but she continued to listen unmoved. By power of her virtue the Nāga was subdued, and he paid her great honour by means of an Udakapūjā. Ras.i.34f.