The Prime Minister. At present (April 20th 2011) it is David Cameron.
He was a Tory Political leader and served twice as the Prime Minister of the United Kingdom.
Winston Churchill led the United Kingdom.
The Prime Minister
Prime minister
Prime minister
You could be thinking about the Leader of the House or the Prime Minister.
London
The United Kingdom was the country that Winston Churchill was the leader of.
David Cameron is the current leader
David Cameron.
The answer is no. First of all they are Princes of the United Kingdom - not England. In fact Charles the heir to the throne is Prince of Wales. No Royal can be Prime Minister or a member of Parliament. It is called the House of Commons - or commoners (non-royal).
The President of the United States.