Prince Harry's HRH Title Officially Dropped From Kensington Palace Exhibit Involving Princess Diana

Prince Harry's "His Royal Highness" title has been removed from an exhibit in Kensington Palace involving his late mother, Princess Diana.

Prince Harry's HRH title was dropped from the exhibit, which features Princess Diana's wedding dress from her July 1981 nuptials to Prince Charles, after an "administrative error," Page Six reported. The Sun obtained a photo of the updated sign under the gown Thursday, and it now read, "Lent by HRH The Duke of Cambridge and Duke of Sussex," referring to Princes William and Harry, respectively.

Initially, the placard describing the exhibition read, "Lent by HRH The Duke of Cambridge and HRH The Duke of Sussex." Two other items the brothers shared for the exhibit reportedly had a similar error, The Sun reported.

However, The Royal Collection Trust said in a statement last week that an "administrative error" resulted in "incorrect" labels and that they would be updated, according to the outlet.

Kensington Palace's "Royal Style in the Making" exhibit opened to the public earlier this month and will run through Jan. 2, 2022, Us Weekly reported.

Under the "Megxit" agreement, Prince Harry and Meghan Markle retained their royal titles but would no longer be allowed to use them.

Prince Harry has voluntarily dropped his royal title for events and projects since he and Markle announced their decision to step back as senior working royals in January 2020.

Last year, he registered his eco-friendly tourism organization Travalyst as Prince Henry Charles Albert David, Duke of Sussex, dropping the family’s Mountbatten-Windsor name and his HRH title, according to documents obtained by Us Weekly.

The Sussexes also ditched their royal titles in their letter to StreetGames, a national sports charity dedicated to helping young people in the U.K.'s most disadvantaged areas, in June 2020. They signed the thank you card simply as "Harry & Meghan."

A year after Megxit, Buckingham Palace confirmed in February that Prince Harry and Markle chose not to return as working royals. They were then stripped of their royal patronages and Prince Harry's honorary military titles.

The Sussexes fired back via a spokesperson at the time, saying, "We can all live a life of service. Service is universal."