Princess Charlotte steps out in Prince Harry's red shoes from 1986

PHOTO: Catherine, Duchess of Cambridge, Princess Charlotte of Cambridge, Prince William, Duke of Cambridge and Prince George of Cambridge arrive at Warsaw airport during an official visit to Poland and Germany on July 17, 2017 in Warsaw, Poland. PlaySamir Hussein/Getty Images
WATCH Princess Charlotte turns 2

Princess Kate may be the queen of recycling her old outfits, but she's also paying homage to royal tradition by dressing her children in hand-me-downs from their father, Prince William, and now their uncle, Prince Harry.

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On Monday, Princess Charlotte was color-coordinated with her mother in a red and white floral dress, the colors of Poland's national flag, in a diplomatic nod to their hosts. The shiny, red buckled shoes that Charlotte was wearing are the same pair worn by Prince Harry at the same age in 1986 more than 30 years ago.

PHOTO: Prince Charles and Prince William at Highgrove, July 14, 1986. Princess Charlotte and Catherine, Duchess of Cambridge arrive in Warsaw, Poland, July 17, 2017 Getty Images
Prince Charles and Prince William at Highgrove, July 14, 1986. Princess Charlotte and Catherine, Duchess of Cambridge arrive in Warsaw, Poland, July 17, 2017

Looking through old albums is nothing new for Princess Kate. On their royal tour in Canada, Charlotte was kept warm while attending a children's party at the Government House by wearing the same sweater that George first wore to meet his baby sister at the hospital.

PHOTO: Prince William and his daughter Princess Charlotte in Victoria, Canada, Sept. 29, 2016. | Prince William and his son Prince George in London, May 2, 2015. Pool/Sam Hussein/Getty Images | Kirsty Wigglesworth/AP Photo
Prince William and his daughter Princess Charlotte in Victoria, Canada, Sept. 29, 2016. | Prince William and his son Prince George in London, May 2, 2015.

Prince George’s red Rachel Riley shorts set he wore to Princess Charlotte's christening in Sandringham looks nearly identical to a similar outfit Prince William wore when he was taken to see his younger brother, Prince Harry, in the hospital for the first time in 1984.

PHOTO: Prince George, left, is pictured on July 5, 2015. Prince William, right, is pictured on Sept. 16, 1984. PA Wire/AP Photo
Prince George, left, is pictured on July 5, 2015. Prince William, right, is pictured on Sept. 16, 1984.

George also wore the same outfit as his father for his first Buckingham Palace balcony appearance during Trooping the Colour, celebrating the birthday of George's great-grandmother, the queen. In a throwback photo, Prince Charles can be seen holding William in the same romper.

PHOTO: From left, Prince Charles and Prince William on June 16, 1984 and Prince William and Prince George on June 13, 2015. Getty Images
From left, Prince Charles and Prince William on June 16, 1984 and Prince William and Prince George on June 13, 2015.