You can run the following in Execute Anonymous
to find the Child Relationship
names.
DescribeSObjectResult describe = SObjectType.Case;
for (ChildRelationship relationship : describe.getChildRelationships())
system.debug(relationship);
A naive copy to the list
attribute yields:
<apex:page standardController="Case">
<!--apex:relatedList list="EmailMessages" /-->
<apex:relatedList list="Cases" />
<apex:relatedList list="CaseSolutions" />
<!--apex:relatedList list="CaseComments" /-->
<apex:relatedList list="OpenActivities" />
<apex:relatedList list="ActivityHistories" />
<!--apex:relatedList list="Histories" /-->
<!--apex:relatedList list="Attachments" /-->
</apex:page>
Commented out lists did not work. I will update with the missing names as I find them.