Another...
Well, one of my colleagues was seated next to her on Concorde (She was in 1A) about 6 or 7 years back. Allegedly a very pleasant chat on the way to JFK, though my colleague had no idea who she was. According to him, shortly before landing, she said "You don't know who I am, do you?", and supplied her name. My colleague, who is very English indeed, did think he seemed vaguely familiar.
Momo