LONDON (AP) — It's an old tradition that a bride should have something old, something new, something borrowed and something blue on her wedding day, and the Duchess of Sussex followed that when she wed Prince Harry.

The former Meghan Markle has revealed in a television documentary that she had a piece of blue fabric from the dress she wore on her first date with Harry sewn into her wedding outfit.

She made the comments while discussing the dress in a documentary about Queen Elizabeth II called Queen of the World.

The clip was made public Sunday. The documentary will be broadcast at a later date. It deals with the queen's role as head of the Commonwealth.

The duchess described her May wedding on the grounds of Windsor Castle as a "magical day."