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Brigitte, 64 was pictured disembarking a boat cruise with her fellow G20 spouses, as Mr Macron and his contemporaries kicked off the first day of the summit. She held hands with the Argentinian First Lady Juliana Awada as she left the boat, eschewing her usual black skinnies and blazer for a daring pink dress. Since Mr Macron won the French presidential election Brigitte has won over the fashion crowd with her chic Parisian style and immaculate blonde bob. Brigitte, who is 24 years older than Mr Macron, is set to take an unprecedented role in her husband's presidential administration. Since his days as Finance Minister the former teacher has acted as her husband’s unofficial aide. Mr Macron’s former chief of staff Alexis Kohler said: “She attended agenda meetings when he was a minister. She is a woman who’s involved in the life of her husband.”

In October, Brigitte told reporters: “I’ve been involved in everything at his side for 20 years. “You always seem surprised that spouses are beside their husbands. It’s time for things to evolve. That’s where we belong.” France’s First Lady has no formal role, but Mr Macron, 39, has said that his wife will have “a role and a place”. He will reportedly give Brigitte an office, staff and a budget – but no salary. The former teacher is expected to focus her work on education reform, with biographer Candice Nedelec telling The Sunday Times: “She will concentrate on work for autistic and disadvantaged kids, out of the political firing line.”

France's First Lady Brigitte Macron in pictures Tue, July 17, 2018 Brigitte Macron is a former high school teacher and the wife of the French politician Emmanuel Macron. See her most recent pictures. Play slideshow REUTERS•Getty 1 of 100 France's First Lady Brigitte Macron in pictures

Who is Emmanuel Macron’s wife? Mr Macron has been dubbed “chou-chou” (a teacher’s pet) by French media because of his marriage to his one-time high school drama teacher. Brigitte first met the future French president when he was 15 years old and she was a 40-year-old married mother-of-three. “He wasn’t like the others,” Brigitte told a French documentary last year. "He wasn’t a teenager. He had a relationship of equals with other adults.”

GETTY Emannuel Macron and his wife Brigitte Trogneux could become the new first couple of France

At 17, Mr Macron’s parents sent him to Paris to continue his studies after learning about his relationship with Brigitte. His mother has revealed that she initially thought that her son was interested in Brigitte’s daughter Laurence, who was one of his classmates. “We couldn’t believe it. What is clear is that when Emmanuel met Brigitte we couldn’t just say ‘that’s great’,” she told Anna Fulda, author of Emmanuel Macron: A Perfect Young Man. Mrs Macron reportedly told Brigitte: “Don’t you see. You’ve had your life. But he won’t have children with you.”

GETTY Brigitte was Mr Macron's drama teacher

The couple have not revealed at which point their relationship became romantic. Brigitte, 64, is quoted in the book as saying: “Nobody will ever know at what moment our story became a love story. That belongs to us. That is our secret.” What is known is that by the time Mr Macron left his hometown for Paris, he had already vowed to marry Brigitte one day. After he had moved, the couple would “call each other all the time and spend hours on the phone”, Brigitte said. “Bit by bit, he defeated all my resistance, in an amazing way, with patience.” Brigitte, whose family owns Jean Trogneux – a luxury chocolatier and macaroon maker, eventually divorced her husband and moved to Paris to be with Mr Macron. WHO IS EMMANUEL MACRON?

GETTY Brigitte's daughter Tiphaine works on Mr Macron's campaign