On 30 Mar 2003, Katie from the UK wrote

Dear Departed Di,
I have always admired Princess Diana. But I know for sure that you are not
her. The only way to rise someone from the dead is spells and that’s almost
impossible. I know you are not her because she didn’t like being a princess.
If you don’t believe me go to www.quotes.com!

“Almost impossible”, Katie? Nothing is impossible if one is a Princess.

www.quotes.com redirects to http://www.siliconinvestor.com/. I couldn’t find the quote you referenced.

Yours sincerely, Diana

Former Princess of Wales