: , I doubt the title is appended because of any need for disambiguation. I note that the vast majority of the entries in Category:Barons in the Peerage of the United Kingdom have the title appended to the name, the main exception being former Archbishops of Canterbury, but there are also a few others, who seem to be covered by:  

 :Wikipedia:Naming conventions (royalty and nobility)#British nobility, according to which: 

  
 *There are several exceptions to these rules. 
 :*Peers who are almost exclusively known by their personal names: e.g. Bertrand Russell (not "Bertrand Russell, 3rd Earl Russell").  
 :*Peers who are very well known by their personal names and who only received a title after they retired, e.g. Anthony Eden (not "Anthony Eden, 1st Earl of Avon"), Margaret Thatcher (not "Margaret Thatcher, Baroness Thatcher"). 
 ::* An exception to the above exceptions is where the peerage title is useful for disambiguation, e.g. Chris Smith, Baron Smith of Finsbury. 
 :*When one holder of a title is overwhelmingly the best known: e.g. Alfred, Lord Tennyson and Lord Byron. 

  
 :So it looks to me as if the name should stay as it is. You could also ask at Wikipedia:WikiProject Peerage and Baronetage.