Sitting next to a statue of his war hero father, Andrew Zylinski, who he said led a victorious cavalry charge against the Germans in 1939, Mr Zylinski said he could not take any more anti-Polish discrimination.

Holding his father's sword, Mr Zylinski said: "I've realised that now what I have to do is to stand up in defence of my people in this country in the UK.

"I've had enough of discrimination against Polish people in this country.

"The most idiotic example I have heard of has been Mr Nigel Farage blaming migrants for traffic jams on the M40."

Nigel Farage has given short shrift to the Prince. "I'm not intending to accept the offer," the Ukip leader said, joking: "I've been trying to keep violence out of the election."