Labour leader Ed Miliband has announced he is getting married in May - but elder brother David will not be best man.
Mr Miliband, 41, is to tie the knot with long-term partner Justine Thornton at a hotel ceremony near Nottingham attended only by family and "very close" friends.
The small-scale wedding will not include a best man, avoiding the thorny issue of whether Mr Miliband would ask David - whom he beat to the Labour leadership last year - to fill the role.
A beaming Mr Miliband said he had proposed on Primrose Hill, commanding panoramic views of the capital, near their north London home.
Standing with Ms Thornton, a lawyer, he said of the May 27 wedding: "We will do it in our own way. We have done everything in our own way."
His brother David, who had Ed as his best man, had been the second person to whom he broke the news after their mother, Mr Miliband told BBC News. "He is delighted for me and he will obviously be there."
The ceremony will be at Langar Hall hotel, not far from where Ms Thornton grew up, followed by a honeymoon in an undisclosed location.
Mr Miliband and his bride-to-be have been together for several years and have two sons, but the Labour leader previously said he had been "too busy" to get married.
The couple announced the date in an interview with the Doncaster Free Press, the local newspaper in Mr Miliband's Doncaster North constituency. He told the newspaper it was "the right time" for the couple to tie the knot and that they had decided they would get married about a year ago.
Ms Thornton said: "Ed wasn't even an MP when I met him and at the end of the day I am marrying him because of who he is and not because of what he's doing now. We're planning on a small ceremony, all at the hotel with everything at the same place and we're looking forward to it very much."