The card on the wreath left for Britain's Prince Philip by the Duke and Duchess of Sussex in St George’s Chapel was handwritten by Meghan, who is watching the funeral on television from her home in the United States.
Meghan and Harry personally chose the locally-sourced flowers for their tribute – including Acanthus mollis (Bear’s breeches), the national flower of Greece, to represent Philip’s heritage, and Eryngium (sea holly), to represent the Royal Marines.
The wreath also features campanula for gratitude and everlasting love, rosemary to signify remembrance, lavender for devotion, and roses as June is Philip’s birth month.
Meghan, who is expecting the couple’s second child, is watching proceedings from more than 5,000 miles away in California after doctors advised her not to fly.
She had hoped to attend, but the Duke of Sussex is at the funeral alone.
The British monarchy faced crisis just weeks ago, when the Sussexes accused the royals of racism and the institution of failing to support Meghan when she was suicidal in an interview with Oprah Winfrey.
The floral wreath was designed and handmade by Willow Crossley, who was in charge of the flower arrangements for Harry and Meghan’s evening wedding celebrations in Frogmore Gardens.
She also arranged the flowers for the christening of Harry and Meghan’s son Archie in the private chapel in Windsor Castle.
Meghan is known for her skill at calligraphy and previously used to write wedding invitations.