Is the total still 51? I have found nothing on the Wiki or Forum to say otherwise.
Technically, it's 52, but one is not implemented.
There are 7 "noble" skills, so those last 6 can't be one for each.
Swordfighting
Jousting
Leadership
Trading
Bureaucracy
Oratory
Infiltration
Unless Trading doesn't get you one, since it doesn't do much?
Nope. There are not unique fame points associated with any individual skill.