Mr Lloyd, chairman of the Parliamentary Labour Party since 2006 until earlier this year, is the party's candidate for the Greater Manchester area.

BBC: Date set for three parliamentary by-elections

Tony Lloyd, chair of the Parliamentary Labour Party since 2006, is Labour's candidate for the Greater Manchester area.

BBC: Sir Stuart Bell

Former Welsh Secretary Alun Michael, who was first elected in 1987, is Labour's candidate for the South Wales area.

BBC: Sir Stuart Bell