The 29-year-old, standing against Mr Blunkett in Brightside, was challenged about comments calling Her Majesty a "liar and traitor to her own people," and calling for her to be tried for "treason" and "sedition" for signing EU treaties.

The post, on the BNP supporting Green Arrow website, concluded: "She is no monarch of England or the UK, she is a craven coward."

Another blogger said that his first reaction on hearing the Queen's Christmas message was to "switch to Anglo-Saxon mode and write '**** you and your descendants you treasonous bitch'."

Green Arrow also contains offensive comments about Mr Blunkett for supporting immigration. One read: "Blunkett of course is also a traitor and will one day face justice for this act of treason."

Another calls on voters in Brightside constituency to support Mr Collett, the BNP's head of publicity, to "wipe out Blunkett's majority". It also makes offensive personal comments about Mr Blunkett.

Mr Collett said Paul Morris, who runs Green Arrow, is not a BNP member and that the website is "not endorsed by the party". He added: "They are not my views nor those of the BNP. It's just an individual on the internet."

A reminder of Collett's past thoughts on royalty and other matters:

On Winston Churchill: "Churchill was a f***ing ***t who led us into a pointless war with other whites [i.e. The Nazis] standing up for their race".

On the Prince of Wales: "He's a f***ing traitor."

On the Royal Family: "The Royals have betrayed their people. When we're in power they'll be wiped out and we'll get some Germans to rule properly."

On Aids: "A friendly disease because blacks, drug users and gays have it."

On Jews: "There's not a European country the Jews haven't been thrown out of. When it happens that many times, it's not just persecution. There's no smoke without fire."

On Adolf Hitler: "Hitler will live forever; and maybe I will."