Bereavement Support
Here are some useful links:
https://www.childbereavementuk.org
Child Bereavement UK supports families and educates professionals when a baby or child of any age dies or is dying, or when a child is facing bereavement.
https://www.winstonswish.org/supporting-you/supporting-a-bereaved-child/
Bereavement support service for grief and loss in children and young people.