Princess Catherine has been globally known for her poise, kindness, and iconic sense of fashion.

However, her friendship with Princess Mary of Denmark seems to stand out from the rest.

Good relations between these two royal families are, after all, a long-held tradition.

Princess Catherine and Princess Mary of Denmark

These two families are both descended from the “Godmother of Europe,” Queen Victoria.

This royal friendship between Princess Catherine and Princess Mary of Denmark is particularly unique.

Their lives, values, and taste in fashion share an uncanny resemblance that has received global attention.

The weddings of Princess Mary and Princess Catherine

They are both commoners-turned-princesses, with Catherine growing up in Berkshire, and Princess Mary in Tasmania, Australia.

Princess Mary met her husband, Crown Prince Frederik, at an Australian pub during the Olympics in 2000.

Nevertheless, their love story began and, in 2004, they married in Copenhagen.

Princess Catherine and Princess Mary on tour

In 2001, Princess Catherine famously met Prince William at St. Andrews in Scotland where they were both students.

When they married in 2011, they became the Duke and Duchess of Cambridge.

Like Catherine, Princess Mary is heavily involved in a multitude of charities.

Princess Catherine in 2021 and Princess Mary in 2020

With this common passion, the two royals are likely to cross paths many times in the future.

Both princesses share a love of designer Beulah, each owning several dresses designed by this London-based brand.

The simple yet beautiful style they seem to share has become the centerpiece of their public friendship.

Princess Catherine and Princess Mary in Copenhagen, 2011

In 2016, this iconic event represented the perfect setting for a royal reunion of friends.

During this public appearance, Princess Catherine and Princess Mary were noted for their resemblance to each other.

Many said they could be sisters!

Catherine and Mary at Royal Ascot, 2016

With their dark hair pulled back beneath beautiful fascinators, the two royals were equally striking.

In addition, Princess Catherine’s trip to Denmark honored the jubilees of two reigning queens.

This viral moment highlights Catherine’s popularity with the public, a popularity that Princess Mary also unsurprisingly shares.

Princess Mary and Princess Catherine laughing

Likewise, Mary’s oldest, Prince Christian, will become king after his father, Prince Frederik.

A source toldUs Weekly, “Kate and William go out of their way to keep the kids grounded.

While the kids know there’s something special about them, they’re not spoiled.”

Prince George and Prince Christian

As mothers to the future kings of their countries, Catherine and Mary share a uniquely challenging responsibility.

As mentioned earlier, they are both raising heirs to the throne.

But what about Catherine’s two and Mary’s three other children?

Prince Frederik and Princess Mary with kids

Sometimes, it’s hard to believe these royal twins are two entirely different people!

Much of this tension seems to concern Harry’s wife, Meghan Markle, and their children.

Denmark made global news when Queen Margrethe decided tostrip some of her grandchildren of their titles.

The British royal family

Like Harry, Prince Joachim announced he was moving his family to America (viaInstagram).

However, the times in which they can support each other are meaningful.

Prince Frederik and Princess Mary at the coronation