Kate Middleton paid tribute to her husband, Prince William’s, grandfather, Prince Philip. On Saturday, she attended the Duke of Edinburgh’s intimate funeral service at St. George’s Chapel at Windsor Castle in England.

The 39-year-old Duchess of Cambridge wore a fitted black coat dress with a large bow, as well as a modest fascinator hat and small accompanying veil.

She also sported a necklace that had deep symbolism. The accessory was a four-strand pearl necklace from Queen Elizabeth II’s personal collection, which the reigning monarch once loaned to the late Princess Diana. The necklace has been worn by both the queen and Diana at public events and was originally a gift from the Japanese government.

Kate has been known to wear tiaras and jewelry from both the queen and Diana in the past. Saturday’s display was a touching tribute to Queen Elizabeth II, who is grieving the loss of Philip, her husband of 73 years.