For over a century, British royal women have played a key role in St. Patrick’s Day celebrations by presenting shamrocks to the Irish Guards. Kate Middleton has not only embraced this duty but has also helped bring fresh prominence to the event. Since marrying Prince William, she has regularly attended the annual parade, making it a notable moment in the royal calendar.
A Tradition Rooted in History
The Irish Guards, a regiment within the British Army, was established in 1900 by Queen Victoria. The tradition of distributing shamrocks began in 1901, introduced by Queen Alexandra, Victoria’s daughter-in-law. Shamrocks, known for their three heart-shaped leaves, symbolize the Holy Trinity and remain a strong emblem of Irish identity.
Each year on St. Patrick’s Day, members of the Irish Guards receive shamrocks as a mark of honor. Even during wartime, soldiers on active duty have been sent shamrocks, often tucking them into their helmets for luck. Those stationed at home regard it as a privilege to receive them from a senior royal.
Kate Middleton’s Role in the Tradition

For years, the late Queen Mother was the central figure in this tradition. After her passing, Princess Anne briefly took on the role. However, since 2012, it has been Kate Middleton who has upheld the duty, continuing the long-standing connection between the royal family and the regiment.
In 2023, her involvement deepened when she was appointed Honorary Colonel of the Irish Guards, taking over from Prince William. As he stepped down from the position, he expressed both his gratitude and confidence in Kate’s dedication to the regiment. “Though I may be stepping aside, you now have Colonel Catherine—someone who is focused, committed, and incredibly proud to serve as your 11th Colonel,” he stated.
Each year, around 400 Irish Guards soldiers march across the parade ground, culminating in a formal group photograph with Kate and William. The event is followed by a reception where the couple interacts with officers, guardsmen, and their families.
A Special Connection With the Irish Wolfhound Mascot
The St. Patrick’s Day parade also features a beloved figure—the Irish Guards’ wolfhound mascot. In 2019, Kate and William shared a warm moment with Domhnall, the regiment’s official mascot, who had been a familiar presence at past events.
As part of the ceremony, Kate presented the dog with his own shamrock, a touching tribute to his service. Domhnall, whose name means “world leader” in Gaelic, led the troops during the parade before retiring later that year after nearly seven years in the role.
Time-Honored Fashion Choices

Kate’s fashion choices at the parade often reflect the significance of the occasion. She frequently wears green to honor Ireland’s national day, with only one exception in 2015 when she opted for a chestnut brown coat.
One of her most striking appearances was in a head-to-toe teal ensemble, subtly nodding to the Irish Guards’ plume. Her Catherine Walker coat, featuring structured buttons and a high collar, drew inspiration from military attire.
A standout accessory is the gold shamrock brooch by Cartier, loaned by the Irish Guards. Previously worn by the Queen Mother and Princess Anne, the brooch carries historical significance and reinforces Kate’s role in preserving royal traditions.
A Toast to Tradition
The St. Patrick’s Day celebrations conclude with an informal yet cherished moment—Kate and William raising a pint of Guinness with the troops. This tradition adds a personal touch to the event, fostering camaraderie between the royal family and the regiment.
Kate Middleton’s involvement has undoubtedly strengthened the connection between the monarchy and the Irish Guards. By making the parade a priority each year, she has helped keep this century-old tradition alive, ensuring its place in the royal calendar for years to come.