Regulus Black's son the HBP

[onnanokata]

No: HPFGUIDX 109576

Erika wrote:
 
What if Regulus was trying to get out because he had fallen in love 
with a Muggle.  What if he had a son? His son would be a Half Blood 
and a "prince", not in the literal sense.  He would be the Half 
Blood Prince that would try to claim Sirius' inheritance!
<snip> 
 
What do you guys think of my wild theory?
 
-Erika
 
HedwigsTalons wrote:

Erika - 

I think this is a great theory! That would make Regulus' child 
potentially Harry's age or a bit older. (Unless Regulus never 
died, and then the child could be younger.) If the child is 15 or 
older, where has he been going to school? Will he transfer to 
Hogwarts?

HedwigsTalons

Angel wrote:
 
How about it turns to be Dean Thomas? In her edits, Jo told us that 
Dean's father is a wizard (without the knowledge of Dean's mother) 
and was killed by death eaters. Interesting enough is that this pcs 
of information was cut from the Chamber of Secrets. 
 
- Angel
 
Alice wrote:

But Dean Thomas is black (so probably not a Black).

Rita Prince Winston wrote in:
http://groups.yahoo.com/group/HPforGrownups/message/109406

Until quite recent times, it was regarded, at least in USA, that if
one parent is black, then the child is black.

Dharma replies:

Rita,

This is a very good observation.  JK Rowling really never gives any 
information about the families of the students who are ethnic 
minorities.  We have no idea if any of their families are multi-
ethnic or not.   We don't even know the Wizarding heritage of these 
students, with the exception of Dean.  Is she leading us towards 
particular assumptions, or are these omission insignificant? 

Dharma