New Delhi, Feb. 2 -- A startling email from Sarah Ferguson, the ex-wife of Britain's former Prince Andrew, suggested that convicted sex offender Jeffrey Epstein may have had a secret child 15 years ago.

In the message, dated September 21, 2011, Ferguson congratulated Epstein, who had already been convicted of sexual abuse involving a minor, the most recent release of Epstein's documents showed.

According to a report by The New York Post, Ferguson, in the released email, mentioned, "Don't know if you're still on this bbm but have heard from The Duke that you have had a baby boy."

She concluded, saying, "Even though you never kept in touch, I still am here with love, friendship, and congratualtions on your baby boy. Sarah xx."

Ferguson ...