Why Rabastan was Re: Regulus Black / Significance of DD & Sirius having

[pippin_999]

No: HPFGUIDX 147418

Carol:
The pair I can't figure out is Rodolphus and Rabastan Lestrange. 
Why is Rabastan in the books at all?)

Pippin:
Rabastan is another duplicate name clue, IMO. Remember how we all
sweated over the mysterious fourth man in the pensieve? We knew it
was the trial of the Lestranges and Barty Crouch Jr, but who was that
other fellow?  Then we find out that we knew his  name all along.  
He was  *another* Lestrange. Like the significantly
named but otherwise completely unimportant Mark Evans, IMO, he
is a clue that JKR is not finished with the duplicate names plot
device under which she concealed the identity of the burglar in
GoF. 

We also have found out, via the website, that  someone "sent" the 
Longbottom Four, so the delay in identifying Rabastan served as 
a hint to keep thinking about who  could have been involved in the
attack.


Rabastan's first name can also be a red herring for the mysterious
RAB.

Pippin