How Prince George and Princess Charlotte will take part in their teacher's wedding

Prince George and Princess Charlotte will be a page boy and bridesmaid for their teacher's wedding, according to reports.

Lucy Lanigan-O’Keeffe, the assistant head teacher at George's school in London, is marrying their dad's life-long friend, Thomas van Straubenzee. Charlotte will also start attending the school, Thomas' Battersea School, later this year.

Van Straubenzee, 36, proposed to Lanigan-O'Keefe, 31, last week, according to The Sunday Times. It is not clear who first introduced the pair.

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Prince George and Princess Charlotte steal the show at royal wedding
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Prince George and Princess Charlotte steal the show at royal wedding
WINDSOR, UNITED KINGDOM - MAY 19: Princess Charlotte leaves St George's Chapel at Windsor Castle after the wedding of Prince Harry, Duke of Sussex and Meghan Markle on May 19, 2018 in Windsor, England. (Photo by Brian Lawless - WPA Pool/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Princess Charlotte and Catherine, Duchess of Cambridge leave St George's Chapel at Windsor Castle after the wedding of Prince Harry, Duke of Sussex and Meghan Markle on May 19, 2018 in Windsor, England. (Photo by Brian Lawless - WPA Pool/Getty Images)
Doria Ragland, the Prince of Wales, the Duchess of Cornwall, the Duke and Duchess of Cambridge with Prince George and Princess Charlotte leave St George's Chapel in Windsor Castle after the wedding.
Princess Charlotte (L) waves by her mother Britain's Catherine, Duchess of Cambridge after attending the wedding ceremony of Britain's Prince Harry, Duke of Sussex and US actress Meghan Markle at St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Jane Barlow / POOL / AFP) (Photo credit should read JANE BARLOW/AFP/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Prince George leaves St George's Chapel at Windsor Castle after the wedding of Prince Harry, Duke of Sussex and Meghan Markle on May 19, 2018 in Windsor, England. (Photo by Brian Lawless - WPA Pool/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Princess Charlotte and Prince William, Duke of Cambridge leave St George's Chapel after the wedding of Prince Harry and Meghan Markle in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Jane Barlow - WPA Pool/Getty Images)
WINDSOR, ENGLAND - MAY 19: Princess Charlotte of Cambridge arrives at the wedding of Prince Harry to Ms Meghan Markle at St George's Chapel, Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Chris Jackson/Getty Images)
Princess Charlotte (right) arrives for the wedding of Prince Harry and Meghan Markle at Windsor Castle.
Princess Charlotte on the steps of St George's Chapel in Windsor Castle after the wedding of Prince Harry and Meghan Markle in Windsor, Britain, May 19, 2018. Jane Barlow/Pool via REUTERS
Princess Charlotte of Cambridge (L) stands on the steps holding the hand of her mother Britain's Catherine, Duchess of Cambridge, (R) after attending the wedding ceremony of Britain's Prince Harry, Duke of Sussex and US actress Meghan Markle at St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Jane Barlow / POOL / AFP) (Photo credit should read JANE BARLOW/AFP/Getty Images)
Princess Charlotte of Cambridge (L) waves holding the hand of her mother Britain's Catherine, Duchess of Cambridge, (R) after attending the wedding ceremony of Britain's Prince Harry, Duke of Sussex and US actress Meghan Markle at St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Jane Barlow / POOL / AFP) (Photo credit should read JANE BARLOW/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge (L) and Meghan Markle's friend, Canadian fashion stylist Jessica Mulroney (2L) hold bridesmaids hands as they arrive for the wedding ceremony of Britain's Prince Harry, Duke of Sussex and US actress Meghan Markle at St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Jane Barlow / POOL / AFP) (Photo credit should read JANE BARLOW/AFP/Getty Images)
The Duchess of Cambridge arrives with the Princess Charlotte (right) at St George's Chapel at Windsor Castle for the wedding of Prince Harry and Meghan Markle.
Duchess of Cambridge and Princess Charlotte after the wedding of Prince Harry and Meghan Markle at Windsor Castle.
The Duke and Duchess of Cambridge and Prince George leave St George's Chapel at Windsor Castle for the wedding of Meghan Markle and Prince Harry.
Britain's Catherine, Duchess of Cambridge (C) walks up the west steps with Prince George (L) and bridesmaids for the wedding ceremony of Britain's Prince Harry, Duke of Sussex and US actress Meghan Markle at St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Jane Barlow / POOL / AFP) (Photo credit should read JANE BARLOW/AFP/Getty Images)
Prince Harry's brother and best man Prince William, Duke of Cambridge, Britain's Catherine, Duchess of Cambridge, and Prince Harry's nephew and page boy Prince George leave after attending the wedding ceremony of Britain's Prince Harry, Duke of Sussex and US actress Meghan Markle at St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Gareth Fuller / POOL / AFP) (Photo credit should read GARETH FULLER/AFP/Getty Images)
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Prince William will be an usher on the big day, while George and Charlotte are expected to be a pageboy and bridesmaid, The Sunday Times reported.

Prince William has known van Straubenzee since he was young; they attended the Ludgrove School in Berkshire together.

Van Straubenzee and his younger brother, Charlie, both served as ushers at Prince Harry and Meghan Markle's wedding last year. He is also Charlotte's godfather.

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George and Charlotte at Pippa Middleton's wedding
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George and Charlotte at Pippa Middleton's wedding
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge stands with her daughter Princess Charlotte of Cambridge, a bridesmaid, following the wedding of her sister Pippa Middleton to James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge stands with her daughter Princess Charlotte of Cambridge, a bridesmaid, following the wedding of her sister Pippa Middleton to James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge stands with her daughter Princess Charlotte of Cambridge, a bridesmaid, following the wedding of her sister Pippa Middleton to James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
Britain's Prince George waves as he leaves in a car after attending the wedding of his aunt, Pippa Middleton, to James Matthews at St Mark's Church in Englefield, west of London, on May 20, 2017. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. The 33-year-old married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer, wearing a couture dress by British designer Giles Deacon. / AFP PHOTO / POOL / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
Pippa Middleton (centre R) kisses her new husband James Matthews, following their wedding ceremony at St Mark's Church in Englefield, west of London, on May 20, 2017, watched by the bridesmaids and pageboys. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. The 33-year-old, wearing a couture dress by British designer Giles Deacon, married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer. / AFP PHOTO / POOL / KIRSTY WIGGLESWORTH (Photo credit should read KIRSTY WIGGLESWORTH/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pageboy Prince George of Cambridge leads the bridesmaids and pageboys out of church after his aunt Pippa Middleton marries James Matthews following their wedding ceremony at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton kisses her new husband James Matthews, following their wedding ceremony at St Mark's Church as the bridesmaids and pageboys walk ahead on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pageboy Prince George of Cambridge attends the wedding Of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pageboy Prince George of Cambridge attends the wedding Of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Princess Charlotte of Cambridge bridesmaid and Prince George of Cambridge attend the wedding Of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Princess Charlotte of Cambridge attends the wedding Of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
Britain's Catherine, Duchess of Cambridge (R) stands with her children Britain's prince George (2R) and Britain's princess Charlotte, following the wedding of her sister Pippa Middleton (3L) to James Matthews (2L) at St Mark's Church in Englefield, west of London, on May 20, 2017. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. The 33-year-old married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer, wearing a couture dress by British designer Giles Deacon. / AFP PHOTO / POOL / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge, bridesmaid leave the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
Britain's prince George (front row C), a pageboy, reacts following the wedding of his aunt Pippa Middleton to her new husband James Matthews, at St Mark's Church in Englefield, west of London, on May 20, 2017. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. The 33-year-old married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer, wearing a couture dress by British designer Giles Deacon. / AFP PHOTO / POOL AND AFP PHOTO / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Britain's prince George (L), a pageboy, Britain's princess Charlotte, a bridesmaid, stand with their nanny Maria Borrallo, as they attend the wedding of their aunt Pippa Middleton to James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge, Princess Charlotte of Cambridge and Prince George of Cambridge attend the wedding Of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Britain's prince George (L), a pageboy, attends the wedding of his aunt Pippa Middleton to James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pageboy Prince George of Cambridge attends the wedding Of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
Britain's Catherine, Duchess of Cambridge (R) stands with her daughter Britain's princess Charlotte, a bridesmaid, following the wedding of her sister Pippa Middleton to James Matthews at St Mark's Church in Englefield, west of London, on May 20, 2017. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. The 33-year-old married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer, wearing a couture dress by British designer Giles Deacon. / AFP PHOTO / POOL AND AFP PHOTO / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge (R) stands with her daughter Britain's princess Charlotte, a bridesmaid, following the wedding of her sister Pippa Middleton to James Matthews at St Mark's Church in Englefield, west of London, on May 20, 2017. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. The 33-year-old married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer, wearing a couture dress by British designer Giles Deacon. / AFP PHOTO / POOL AND AFP PHOTO / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pageboys Casimir Tatos, Edward Sebire, William Ward and HRH Prince George of Cambridge (C) the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Princess Charlotte of Cambridge, bridesmaid attends the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge, with Prince George of Cambridge (R), page boy and Princess Charlotte of Cambridge (R), bridesmaid, after the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
Britain's Prince George waves as he leaves in a car after attending the wedding of his aunt, Pippa Middleton, to James Matthews at St Mark's Church in Englefield, Britain May 20, 2017. Pippa Middleton is the sister of Catherine, Duchess of Cambridge. REUTERS/Justin Tallis/Pool
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge and Prince George of Cambridge attend the wedding Of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Princess Charlotte of Cambridge, bridesmaid and Catherine, Duchess of Cambridge attend the wedding Of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Princess Charlotte of Cambridge, bridesmaid and Catherine, Duchess of Cambridge attend the wedding Of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Princess Charlotte of Cambridge attends the wedding Of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
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It's not the first time Prince William and Kate Middleton's children have taken part in a wedding. They were page boy and bridesmaid for Prince Harry and Meghan Markle, as well as for Princess Eugenie when she married Jack Brooksbank last year. They also took part in the wedding of their mother's close friend, Sophie Carter, in 2018, and the wedding of their aunt Pippa and James Matthews in 2017.

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