The fourth horcrux

[theadimail]

No: HPFGUIDX 135507

Hi,
 Everyone has more or less accepted that the the third horcrux is the 
Slytherin locketand how it will be found. I was wondering about the 
fourth horcrux, the Hufflepuff cup. It was with a woman named Hepzibah 
Smith. Is she in someway related to Zacharias Smith? Now Zacharias is 
not so charming character that we were introduced to in book 5. I 
thought his role there was to serve as a succesful redherring till the 
real sneak is revealed. But he also reapperas in book6 and more so 
than Neville and Luna who have been sorely missed. So will finding the 
fourth horcrux lead somehow to this not epecially liked student?
    By the way, what was Peverell coat-of-arms?
Bye
Adi