Kate Middleton continued her royal power suiting streak in her Bella Freud Prince of Wales check suit during her visit to the Royal Air Force Coningsby in England on Thursday.

For the special royal engagement, the Princess of Wales, who serves as the Royal Honorary Air Commodore, went mostly monochrome, rewearing her Bella Freud suit with the historic Prince of Wales check motif — a sartorial nod to her royal title.

Popularized by King Edward VIII, crowned Prince of Wales during the reign of his father, George V, in the early 20th century, the pattern holds a significant history. At the time of King Edward’s young adult life and subsequent, if short-lived, reign, the royal was among the first to be continuously photographed and the subject of early video camera footage.

As such, the royal quickly became a fashion trendsetter, styling the Prince of Wales check pattern, which is composed of small, fine lines creating a checkered motif. Before Kate Middleton, Princess Diana and Prince Charles both employed the Prince of Wales check in their respective wardrobes. Even celebrities like Cate Blanchett have styled the pattern, notably during The Championships, Wimbledon in July.

Middleton previously wore this Bella Freud suit on Sept. 11 during a visit to Sudbury Silk Mills. For Thursday’s outing, however, the Princess of Wales coordinated her suit with a gray ribbed knit McQueen top to accentuate the color motif of her attire.

Final touches for Middleton’s business look included a pair of Gianvito Rossi suede pumps and a pop of color with her sapphire and diamond oval drop earrings, an accessory she’s donned in the past that complements her engagement ring, which previously belonged to the late Princess Diana.

As far as royal power suiting moments go, Middleton is among the most prominent women to regularly embrace the style, also wearing pieces by Burberry and Roland Mouret, among others. Queen Letizia of Spain also styles the power suit for daytime royal engagements, favoring designers like Mango and Hugo Boss.