Cannot delete a page that is referencing itself

This may be a difficult to reproduce issue, but essentially I have a page that I just can’t delete no matter what I do. Its only reference in the Hierarchy is itself.
The page was created in a reference [[This page 1/2]] which created more than one page (“This page 1” and “2”) I was able to get rid of the page named “2” and changed the initial reference to [[This page first half]] but the “This page 1” just will not delete no matter what I do.