From Walford Wiki
When a character is renamed (most probably due to marriage) a new page should be created using the characters new name as the page name. All existing content on this character should then be moved to this new page, then the old page should be made to redirect to the new page.
How to set up a redirect
Delete all of the content on the old page (making sure it has been moved to the new page) and replace it with the following code:
#REDIRECT [[NAME OF THE NEW PAGE]]
So, for example, when Kat Slater married Alfie Moon - Kat Slater became Kat Moon. A new page for Kat Moon was set-up, and all the content on the Kat Slater page was copied over to the Kat Moon page. The Kat Slater page then had all of its content deleted and replaced with:
#REDIRECT [[Kat Moon]]
Which meant anybody clicking a link for Kat Slater would be automatically transferred to the new page for Kat Moon.