odd claim by tessy to want to have a new made up surname in my opinion. also, with my level of french i do not understand the technicality of being 'de luxembourg' or 'du luxembourg' - to me both mean 'of luxembourg' and i can see no real difference.
in all fairness, i don't see the need for a new surname, although i know women who kept using their married surnames after divorce. i guess in this case it would be 'de nassau'. why couldn't tessy be addressed as 'tessy de nassau'?
also, i am sorry to see that the divorce is not amicable and is the object of a big public drama. if something characterises this family is their discretion. their dirty laundry should have been resolved behind closed doors.