Patapiusz and Symplicjusz (was Sirius' name)

[Amy Z]

No: HPFGUIDX 11944

Katarzyna wrote:

> Severus and Sirius exist in Polish lexicon of names as Sewer and 
Syriusz.
> BTW I've just heard about brothers Patapiusz (Patapius) and 
Symplicjusz
> (Simplicius). 

Who are these brothers in English?  Are these HP characters or did I 
miss a reference?

Amy Z

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  "Do you mean to tell me," he growled at the Dursleys, "that
this boy--this boy!--knows nothin' abou'--about ANYTHING?" 
  Harry thought this was going a bit far. 
                               -HP and the Philosopher's Stone 
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