Among many other examples, if a reader were looking for the person
commonly known as [[Robert Harley]], on Wikipedia they'll be pleased to
find them under the ridiculous title of [[Robert Harley, 1st Earl of
Oxford and Mortimer]], a name not used except in the context of giving
his title. Now, while the said Robert Harley may indeed have been 1st
Earl of Oxford and Mortimer, it's nonetheless a plain fact that his name
was Robert Harley, and it is by this name that he is and was commonly
called.
This seems to be a proliferation on Wikipedia, and indeed there is a
proposal, currently with a wide degree of support, being discussed on
[[Wikipedia_talk:WikiProject_Peerage]] to make this official Wikipedia
policy: where someone holds a title, it must be part of their name,
without exceptions. At least for British titles; perhaps other
countries' titles will be dealt with more vaguely.
I'd argue that simply using peoples' names, except where their titles
are commonly used or necessary for disambiguation purposes, is best in
keeping with our standard "use the most common name in English" naming
policy, and far preferable to the one currently being proposed.
In either case, those of you with an opinion might wnat to head on over
to [[Wikipedia_talk:WikiProject_Peerage]] and vote.
-Mark