Why RAB should be Regulus Black

[Randy]

No: HPFGUIDX 153333

I know this has been discussed and is no longer a mystery to most 
people, but there is another reason why RAB is probably Regulus Black.

Regulus is Latin for Prince (or Little King) , and Regulus Black would 
be the Black Prince.  If you remember the Chess board from the first 
Book in the Chapter called "Through the Trapdoor", Harry,Ron and 
Hermione become chess pieces for the Black side.  Ron becomes a Knight 
and Harry becomes a Bishop and Hermione becomes a castle (or Rook).

In other words, the threesome perform service for the Black King.  In 
fact Ron says:

"I suppose we've got to take the place of three of the black pieces..."

As an analogy, Harry takes on the role that Regulus Black started to 
destroy the Horcruxes of Voldemort.


The other interesting analogy for Regulus Black is that Regulus is a 
bright double star in the constellation of Leo (the Lion).  This ties 
nicely with Griffindor and the Lion symbol.

I think JKR likes to use names for symbols.

Randy