Prince Harry and Princess Diana.Photo: Tim Graham Photo Library via Getty Images

01of 25Queen Elizabeth, 1964Fox Photos/Getty ImagesProud mom and monarch!Queen Elizabethwore her military uniform and offered a royal wave as she held an infant Prince Edward at his very first Trooping the Colour nearly 60 years ago.
01of 25
Queen Elizabeth, 1964
Fox Photos/Getty Images

Proud mom and monarch!Queen Elizabethwore her military uniform and offered a royal wave as she held an infant Prince Edward at his very first Trooping the Colour nearly 60 years ago.
02of 25Prince Harry and Princess Diana, 1988Prince Harry and Princess Diana.Tim Graham Photo Library via Getty ImagesMama and her mini-me!Prince Harry, then 3, stole the show in a white button down with green shorts and suspenders that matched exactly with Princess Diana’s dress and hat of the same shades.
02of 25
Prince Harry and Princess Diana, 1988
Prince Harry and Princess Diana.Tim Graham Photo Library via Getty Images

Mama and her mini-me!Prince Harry, then 3, stole the show in a white button down with green shorts and suspenders that matched exactly with Princess Diana’s dress and hat of the same shades.
03of 25
Meghan Markle, 2019
Dinendra Haria/SOPA Images/LightRocket via Getty Images

04of 25Prince William, 1985Anwar Hussein/Getty ImagesAhoy, sailor!Prince William, then 3, wore a sweet sailor’s outfit to watch the magnificent festivities.
04of 25
Prince William, 1985
Anwar Hussein/Getty Images

Ahoy, sailor!Prince William, then 3, wore a sweet sailor’s outfit to watch the magnificent festivities.
05of 25Kate Middleton, 2017Karwai Tang/WireImageThe Duchess of Cambridge beamed in a bright pink dress and matching hat duringthe famous fly-paston the balcony of Buckingham Palace. The royal mom kept her childrenPrince GeorgeandPrincess Charlotteclose.
05of 25
Kate Middleton, 2017
Karwai Tang/WireImage

The Duchess of Cambridge beamed in a bright pink dress and matching hat duringthe famous fly-paston the balcony of Buckingham Palace. The royal mom kept her childrenPrince GeorgeandPrincess Charlotteclose.
06of 25Camilla, Duchess of Cornwall, 2016Samir Hussein/WireImageThe Duchess of Cornwall went monochrome in anall-white ensemble, making a statement in a feathered hat and her signature pearl choker.
06of 25
Camilla, Duchess of Cornwall, 2016
Samir Hussein/WireImage

The Duchess of Cornwall went monochrome in anall-white ensemble, making a statement in a feathered hat and her signature pearl choker.
07of 25Princess Anne, 2018Karwai Tang/WireImagePrincess Anne was among the 1,400 guardsmen and cavalry who proudly participated in the parade. The princess wore her official military uniform and rode on horseback for the spectacular ceremony.
07of 25
Princess Anne, 2018

Princess Anne was among the 1,400 guardsmen and cavalry who proudly participated in the parade. The princess wore her official military uniform and rode on horseback for the spectacular ceremony.
08of 25Princess Margaret, 1992The princess surely caught the crowd’s eye in a scarlet red ensemble, making a statement in a fierce, feathered hat.
08of 25
Princess Margaret, 1992

The princess surely caught the crowd’s eye in a scarlet red ensemble, making a statement in a fierce, feathered hat.
09of 25Princess Beatrice, 2007Tim Graham Photo Library via Getty ImagesAn 18-year-oldPrincess Beatricehad an iconic hat moment in a cream fascinator with feathers, matching her neutral outfit.
09of 25
Princess Beatrice, 2007
Tim Graham Photo Library via Getty Images

An 18-year-oldPrincess Beatricehad an iconic hat moment in a cream fascinator with feathers, matching her neutral outfit.
10of 25Sarah Ferguson and Princess Diana, 1991Jayne Fincher/Princess Diana Archive/Getty ImagesThe royal sisters-in-law watched in wonder during the RAF fly-past 30 years ago.Sarah paired a pale blue-green floral outfit with a white hat, while Diana stepped out in a yellow coat dress with navy lapels and a navy hat.
10of 25
Sarah Ferguson and Princess Diana, 1991
Jayne Fincher/Princess Diana Archive/Getty Images

The royal sisters-in-law watched in wonder during the RAF fly-past 30 years ago.
Sarah paired a pale blue-green floral outfit with a white hat, while Diana stepped out in a yellow coat dress with navy lapels and a navy hat.
11of 25Queen Elizabeth, 2002Tim Graham Photo Library via Getty ImagesThe Queen looked lovely in lime, pairing a pale green hat, coat and dress with lavender gloves and a signature black handbag.
11of 25
Queen Elizabeth, 2002

The Queen looked lovely in lime, pairing a pale green hat, coat and dress with lavender gloves and a signature black handbag.
12of 25
Sophie, Countess of Wessex, 2019

Sophie glowed in an emerald green cowl neck dress, accessorized with a black floral fascinator and belt with bow.
13of 25Meghan Markle, 2018Samir Hussein/WireImageMeghanbroke the moldin wearing a pale pink, off-the-shoulder dress for her first Trooping the Colour. The stylesmashed tradition, as women of the royal family typically select longer-sleeved options for the event.
13of 25
Meghan Markle, 2018

Meghanbroke the moldin wearing a pale pink, off-the-shoulder dress for her first Trooping the Colour. The stylesmashed tradition, as women of the royal family typically select longer-sleeved options for the event.
14of 25Princess Beatrice and Princess Eugenie, 2019Mark Cuthbert/UK Press via Getty ImagesMatching moment! The sisters both wore black hats with white flowers as theysmiled at well-wishersfrom their carriage.
14of 25
Princess Beatrice and Princess Eugenie, 2019
Mark Cuthbert/UK Press via Getty Images

Matching moment! The sisters both wore black hats with white flowers as theysmiled at well-wishersfrom their carriage.
15of 25Princess Diana, 1982Tim Graham Photo Library via Getty ImagesThe pregnant Princess of Wales was radiant in an emerald green dress with matching fascinator during her second Trooping the Colour. Just days later, she would give birth toPrince William.
15of 25
Princess Diana, 1982

The pregnant Princess of Wales was radiant in an emerald green dress with matching fascinator during her second Trooping the Colour. Just days later, she would give birth toPrince William.
16of 25
Kate Middleton, 2013

A pregnant Duchess of Cambridge watched on in a pale pinkbutton-up coat dressone month before welcoming her firstborn,Prince George.
17of 25The Queen Mother, 1987David Levenson/Getty ImagesThe Queen Mother looked content during the carriage processional, wearing a blue and white floral dress with a matching hat with black lace that fell over her face.
17of 25
The Queen Mother, 1987
David Levenson/Getty Images

The Queen Mother looked content during the carriage processional, wearing a blue and white floral dress with a matching hat with black lace that fell over her face.
18of 25Queen Elizabeth, 2000Tim Graham Photo Library via Getty ImagesThe monarch was joyful on the Buckingham Palace balcony in a floral pink coat and dress, accessorizing the ensemble with a matching hat and pearls.
18of 25
Queen Elizabeth, 2000

The monarch was joyful on the Buckingham Palace balcony in a floral pink coat and dress, accessorizing the ensemble with a matching hat and pearls.
19of 25Princess Margaret, 1993The Queen’s younger sister was all smiles in a yellow and white coat and dress combination, matching meticulously with a hat and gloves of the same hues.
19of 25
Princess Margaret, 1993

The Queen’s younger sister was all smiles in a yellow and white coat and dress combination, matching meticulously with a hat and gloves of the same hues.
20of 25
Kate Middleton, 2019

Kate chosepale yellowfor the grand military parade, opting for a royal rewear with the rose-trimmed hat.
21of 25Sophie, Countess of Wessex, 1999JOHN STILLWELL/POOL/AFP via Getty ImagesPrince Edward’sthen-fiancée looked ready to join the royal family’s fashionable ranks in a navy coat dress and straw hat for her first-ever Trooping the Colour.
21of 25
Sophie, Countess of Wessex, 1999
JOHN STILLWELL/POOL/AFP via Getty Images

Prince Edward’sthen-fiancée looked ready to join the royal family’s fashionable ranks in a navy coat dress and straw hat for her first-ever Trooping the Colour.
22of 25Princess Margaret, 1982Never one to shy from a fashion statement, the princess rode in style in a bright blue coat dress and white turban-style hat with feathers.
22of 25
Princess Margaret, 1982

Never one to shy from a fashion statement, the princess rode in style in a bright blue coat dress and white turban-style hat with feathers.
23of 25
Princess Eugenie and Princess Beatrice, 2017

In another matching moment, the princesses opted for complementary ensembles in pale blue and white with bodices stitched with floral detailing.
24of 25
Kate Middleton, 2015

Kate smiled from the balcony of Buckingham Palace in a blue floral coat dress and matching white hat –her first appearancesincePrincess Charlottewas born!
25of 25
Camilla, Duchess of Cornwall, 2019

Camillalooked brightin a mint green dress and coat with white embroidery, the stitching of which paired perfectly with her white floral topper.
source: people.com