Prince William stepped up for King Charles to welcome the Sultan of Oman on Tuesday at the start of his state visit to the UK.

On his father’s behalf, the Prince of Wales greeted Haitham bin Tariq al-Said in London before accompanying him to Windsor, where he was officially welcomed by Charles and Queen Camila at the Royal Dais on Datchet Road.

The group, which also included Kate Middleton, participated in a royal salute in Windsor’s Home Park before enjoying a horse-drawn carriage procession to Windsor Castle.

Prince William stepped up for King Charles to welcome the Sultan of Oman, Haitham bin Tariq al-Said, to the UK on Tuesday. Kin Cheung/WPA Pool/Shutterstock

William greeted the Sultan (both seen above) in London before they went to Windsor. Kin Cheung/WPA Pool/Shutterstock

William wore a black suit with gray pants and a blue tie for the royal duty. via REUTERS

William and the Sultan went to Datched Road in Windsor, where they were joined by the rest of the royal family. Andrew Matthews/Pool PA via AP

William, 44, wore a black suit with gray pants and a blue tie for the royal duty, matching with his cancer-stricken father.

Meanwhile, Middleton, also 44, stunned in a light blue outfit, while Camilla, 79, wore all red.

Later in the day, the royals and the Sultan will be joined by Prime Minister Andy Burnham for a state banquet at the castle.

William and the Sultan posed for an official picture together. POOL/AFP via Getty Images

King Charles (seen here) welcomed the Sultan in Windsor on Tuesday. Toby Melville/WPA Pool/Shutterstock

Charles was joined by his wife, Queen Camilla (both seen above). James Veysey/Shutterstock

Kate Middleton (pictured here) was also present to greet the Sultan in Windsor. James Veysey/Shutterstock

A Sultan of Oman hasn’t made an official state visit to the UK since March 1982, when Queen Elizabeth welcomed Sultan Qaboos bin Said.

At the time, bomb disposal officers blew up a car parked near Clarence House, fearing a bomb was planted in the boot of the vehicle, just minutes before Elizabeth was set to drive past with the Sultan, according to The Telegraph.

However, the bomb scare was a false alarm.

The royal family brought the Sultan to Windsor Castle where there will be a state banquet. POOL/AFP via Getty Images

The Prince and Princess of Wales (seen here) took on major royal duties for the day. Toby Melville/WPA Pool/Shutterstock

Charles (seen above) has lessened his royal duties since being diagnosed with cancer in 2024. PA Images/INSTARimages

Since Charles became king in 2022, William and Middleton have taken on welcoming foreign leaders to the UK.

In July 2025, the Prince and Princess of Wales greeted French President Emmanuel Macron at the Royal Dais at Datchet Road at Windsor Castle.

Two months later, the couple welcomed US President Donald Trump and First Lady Melania Trump at Windsor Castle on the monarchy’s behalf.

William leaned in to chat with the Sultan (both seen here with Middleton) during the welcome. Toby Melville/Pool Reuters via AP

Charles waved to well-wishers as he and the Sultan traveled by royal carriage to Windsor Castle. TOLGA AKMEN/EPA/Shutterstock

But since Charles’ 2024 cancer diagnosis, William has taken on more prominent royal duties as he prepares to be king.

In fact, it was reported that William helped decide to strip his uncle, disgraced former Prince Andrew, of his titles over his friendship with pedophile Jeffrey Epstein.

In addition, William still refuses to reconcile with his brother, Prince Harry, and sister-in-law, Meghan Markle, who recently moved back to the UK to be closer to Charles, 77.