The reinvention of Sarah Brown

Sarah Brown: clapping her husband Gordon Brown after his speech as chancellor 2000

2000: Sarah Brown applauding after a speech by her husband, then the chancellor of the exchequer, at the Labour conference in the autumn following their marriage Photograph: Chris Ison/PA

Sarah Brown: with Gordon and their new baby James Fraser 2006

2006: The Browns with their second son, James Fraser Brown, outside Edinburgh Royal Infirmary Photograph: David Cheskin/PA

Sarah Brown: with Gordon Brown on his first day as Prime Minister in June 2007

2007: Outside 10 Downing Street on Gordon Brown's first day as prime minister Photograph: Peter Macdiarmid/Getty

Sarah Brown: speaks to resident as she canvasses support in Cardenden

2008: Speaking to a resident in Cardenden, canvassing support ahead of the Glenrothes byelection Photograph: Russel Cheyne/Reuters

Sarah Brown: introducing her husband Gordon Brown at Labour Conference 2008

2008: Introducing her husband in a well-received speech before his address to the Labour conference Photograph: Martin Argles/Guardian

Sarah Brown: 2008: Sarah Brown and Princess Eugenie

2008: Sarah Brown and Princess Eugenie during the Fashion for Relief show during London Fashion Week at the BFC Tent, Natural History Museum Photograph: Yui Mok/PA

Sarah Brown: 2008: French first lady Carla Bruni-Sarkozy and Sarah Brown

2008: French first lady Carla Bruni-Sarkozy with Sarah Brown outside No 10 Photograph: Martin Argles

Sarah Brown: pouring a pot of tea for first lady Michelle Obama London 2009

2009: Pouring a cup of tea with Michelle Obama during a visit to Maggie's Cancer Caring Centre in London Photograph: Reuters

Sarah Brown: 2009: Sarah Brown and Michelle Obama walk through the gardens of number 10

2009: Brown and Obama walk through the Downing Street gardens Photograph: Reuters

Sarah Brown: defending the NHS on Twitter

2009: @SarahBrown10 defends the NHS on the social networking site Twitter Photograph: PA

Sarah Brown: sitting with Irish PM Brian Cowen at the funeral of Edward Kennedy

2009: Sitting next to Irish prime minister Brian Cowen at the funeral of Edward Kennedy in Boston Photograph: Brian Snyder/Reuters

Sarah Brown: speaking at an event held by M Queen Rania Al Abdullah and Wendy Mudoch NY

2009: Speaking at a dinner in New York held by Rania Al Abdullah, Wendi Murdoch and Indra Nooyi Photograph: Amy Sussman/Getty Images

Sarah Brown: watches as designer Ozwald Boateng adjusts the tie of Gordon Brown

2009: Designer Ozwald Boateng adjusts Gordon's tie as Sarah watches, during a London Fashion Week reception at Downing Street Photograph: Reuters

Sarah Brown: with Naomi Campbell at Glastonbury Festival 2009

At Glastonbury festival 2009 with Naomi Campbell, campaigning with the White Ribbon Alliance for improved maternity care for women in the third world Photograph: Katherine Rose/Observer

Sarah Brown: 2009: Barack Obama and First Lady Michelle welcome Sarah and Gordon Brown

2009: Barack and Michelle Obama welcome Sarah and Gordon Brown to the G20 dinner at the Phipps Conservatory in Pittsburgh Photograph: Jewel Samad/AFP/Getty Images

Sarah Brown: 2009: Sarah Brown speaks with president of Chile, Michelle Bachelet

2009: Sarah Brown speaks to president of Chile, Michelle Bachelet, at a meeting during the 64th United Nations general assembly Photograph: Hiroko Masuike/Getty Images

Sarah Brown: Sarah Brown at the Important Dinner for Women 4

2009: Wendy Murdoch, Sarah Brown, Queen Rania of Jordan, Nicole Kidman, Liya Kebede and Indra Nooyi attend the Important Dinner for Women 4, to bring attention to maternal mortality in New York Photograph: Jennifer Graylock/AP

Sarah Brown: 2009: Sarah Brown and Geri Halliwell

2009: Sarah Brown and Geri Halliwell attend the 4th Important Dinner for Women Photograph: Amy Sussman/Getty Images