Lownie has previously alleged that the duchess shared a particularly close relationship with Epstein, even claiming in earlier interviews that she had been “madly in love” with the convicted sex offender — assertions that have added to the controversy.
Buckingham Palace has not commented on the possibility of a memoir.
If it proceeds, the book would represent Ferguson’s most significant attempt yet to reshape her story, arriving at a time when the House of York once again finds itself under intense global attention.