as ASC1951 said, there is a list of distribution for intestacy.
the probate will give details of the value of the estate, but not who it was given to. it will also give you details of who took out the grant - this is, again, determined by who has the 'right' to (even more limited as there is no Will).
Withers are great lawyers, they do a lot of work for charities involving probate and legacies and hold free seminars on the subjects, i went to one a few weeks ago.