A list of the scientists and learned people known the world over, whose accomplishments have granted them the Nobel prize, and who the Fondazione Sigma-Tau has had the privilege to guest in conferences of highly scientific repute. For over a century the Nobel prize has been awarded in Stockholm following the procedure devised by its creator: while keeping the same division among disciplines, no more than three individuals can be elected for each discipline, always with the general benefit of mankind in view.