Mai - Hermesgroupie would be the very best to ask on the subject of the history of the House, she is very well-read on the subject, and has been a dedicated collector for many years.
As for Mr. Lau, he is (please correct me if I'm wrong, girls) chinese business man, renowned for buying his (many) girlfriends Hermes, particularly exotic Birkins. I, in particular, like to make fun of this fact, and joke about dating him on a regular basis, to get a birkin. (Trying to stay clean here!!).
hope that helps? Hopefully HG will see this thread and tell us a bit more about the background.