What are some really pretty lullabies for adult or kids?

My cousin died in a car crash almost 6 months after having her baby girl, Aviana. My family is taking care of her for a while and so i wanted to teach her some lullabies and not the normal ones we hear all the time. And if you can find Spanish/ Puerto Rican ones would be great!!!!! I will really enjoy your help plus you'd be helping me and my chorus too....thanks!!!!!!!!