To be entitled to Child Benefit means the child must be registered, but does not have to be in receipt of payments.
To be entitled to widowed parent's allowance, or the higher rate of bereavement support payment, the claimant must have had entitlement to Child Benefit on, or immediately after the date of death. Or they must have been pregnant on the date of death.
For bereavement support payment, they may also qualify if they later become entitled to Child Benefit for a qualifying young person or child who was resident with them or the deceased when their partner died.