From a page move: This is a redirect from a page that has been moved (renamed) or is the result of a page move. One reason this page was kept as a redirect is to avoid breaking links, both internal and external, that may have been made to the old page name. Any redirect with a page move logged on its history page should be tagged with this rcat template.
From a cross-project redirect: This is a redirect that is used as a connection to other Wikimedia projects. A Wikidata element is linked to this page: