Origin of name Fawkes

[beanneboy]

No: HPFGUIDX 54311

I have read a lot of messages regarding how Fawkes name come from Guy 
Fawkes etc, and somebody mentioned that JKR mentioned it in an 
interview. Now did JKR say in that interview that whoever oringally 
named the phoenix 'Fawkes', do so becuase of the actual event of the 
gunpoweder plot? OR...

Did JKR name it Fawkes when writing the books, with relevance to the 
historical origin of the event, but with no real bearing to the books 
themselves ??? In which case the timeline of the Gunpowder Plot would 
be of no real significance. 

either way if someone would let me know.......

Lee