parentage According to user Rob the criterium for proving parentage is that both Sharlto and his father MUST be mentioned on the SAME PAGE in an independent source On closer inspection however it is revealed that this is an arbitrary made up requirement Even so if you look at the reference you will notice that the names of the entire Copley family is grouped together on one page and in one section To break it up in little pieces If you are somebody s brother and your brother has a father and all your surnames are the same then your brother s dad must also be your dad unless your mother has remarried to somebody else with exactly that same surname extremely unlikely Put this together with the mention of the Copley family as claimants in an independent source put this together with numerous interviews with the father where he mentions who his sons are if in any further doubt use the mother s contact details supplied by an independent source for verification Note that this is not original research but is simply a verifiable source The result is that there can be no real doubt beyond purely academic grounds about Sharlto s