Lucius - Full blood (was The [Real] Importance of being Draco Malfoy)

[onnanokata]

No: HPFGUIDX 114274

 Dharma wrote:
Canon often reflects what the characters know, until it is the right 
time in the plot to reveal the truth, or another character has a 
reason to present to appropriate information.

 -Bellatrix is unable to accept that Voldemort is not a pureblood 
Wizard even though she is given information to the contrary.   
Barty Jr. knows so why doesn't she?
 
Hiding facts, telling lies and ignoring evidence have been done 
commonly in history to maintain "noble" family reputations.  
 
Chris now:
I was under the impression that Tom Riddle hid his ancestry so that 
no one save Dumbledore knew his true background. Now if Tom Riddle 
can do it so can Lucius Malfoy. 
 
<Big Snip see post 114268>

Dharma replies:

In "The Very Secret Diary", chapter 13 of CoS, Riddle tells Head 
Master Dippet his family history.  Riddle tells the Head Master that 
he is a half blood, and specifies "Muggle father, Witch mother."   
Riddle also goes into the history of his name.  "
Tom after my 
father, Marvolo after my grandfather.

Also, in chapter 18 of CoS, "Dobby's Reward," Dumbledore tells the 
Waesleys, McGonagall and Harry that many people, but not all, failed 
to recognized that Riddle and Voldemort where the same person because 
Voldemort underwent many dangerous transformations.  Dumbledore 
says, "Hardly anyone connected Lord Voldemort with the clever, 
handsome boy who was once Head Boy here. 

Barty Crouch Jr. posing as MadEye, says that both he and Voldemort 
had very disappointing fathers.  He goes on to explain that they both 
had the pleasure of killing those father.  Those passages can be 
found in chapter 35 of GoF,  "Veritaserum."

There seems to be plenty of evidence that information on Voldemort's 
lineage was available.  I don't think that his family history was a 
secret at all really.  It seems more likely to me that if a fanatic 
was under the impression that Voldemort was a pure blood, he just let 
him/her carry on with that idea.  If an omission of truth could aid 
in having someone like Bella to submit to his will, what point would 
there be, from Voldemort's perspective, not to use that power?