She is evidently identical with Janapadakalyānī Nandā (At AA.i.198 she is actually identified with her,but see Sundarī Nandā),and is described as a sister (? step sister) of the Buddha.
The person referred to as her husband (bhattā) is probablyNanda,the Buddha’s step brother; strictly speaking,he joined the Order without having married her,though the wedding had been announced and all preparations were being made.