Denmark's King Frederik and Queen Mary celebrated their eldest son's high school graduation this week.

Earlier this month, the Danish royals commemorated Crown Prince Christian finishing his secondary school exams, and today, the family attended his official graduation ceremony, blending in with the crowd as they watched the graduates parade by in a float:

crown prince christian of denmark graduation ceremony in copenhagen
Martin Sylvest Andersen//Getty Images
Queen Mary and her daughter watch the graduation.
crown prince christian of denmark graduation ceremony in copenhagen
Martin Sylvest Andersen//Getty Images
King Frederik X in the crowd.

For the occasion, Queen Mary wore a Polo Ralph Lauren striped linen pantsuit, and accessorized with blue Gucci sunglasses. She also wore Elhanti earrings, and two delicate, sentimental necklaces—one, a pendant 'F' (for her husband, Frederik) from Danish brand Halberstadt, and another, from Julie Sandlau Fine Jewelry, with a medallion featuring the initials of her four children.

While Mary's striped linen blazer and matching linen pants are currently out of stock, the brand makes plenty of other blue-and-white striped linen pieces to channel the Danish queen's style this summer, including a belted dress and a relaxed fit shirt:

Belted Striped Linen Shirtdress
Ralph Lauren Belted Striped Linen Shirtdress
Relaxed Fit Striped Linen Shirt
Ralph Lauren Relaxed Fit Striped Linen Shirt
Striped Linen-Cotton Sweater
Ralph Lauren Striped Linen-Cotton Sweater

On the royal family's official Instagram, they wrote, "The Royal Couple and the Crown Prince's siblings were present when His Royal Highness was presented with his diploma and afterwards were sent off well with the student van." (Prince Christian has three younger siblings, Princess Isabella, 17, and twins Prince Vincent and Princess Josephine, 13.)

Prince Christian has yet to share his post-graduation plans, but it's widely expected that the Crown Prince will attend university and complete military training.

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Emily Burack
Senior News Editor

Emily Burack (she/her) is the Senior News Editor for Town & Country, where she covers entertainment, culture, the royals, and a range of other subjects. Before joining T&C, she was the deputy managing editor at Hey Alma, a Jewish culture site. Follow her @emburack on Twitter and Instagram.