Princess Marina (13 Dec 1906-27 Aug 1968) Greece the widow of Prince George (1902-1942) Duke of Kent UK photo by www.joseflebovicgallery.com. She died hours after it was announced that she was ill with a brain tumor. On 27 Aug 1968 Kensington Palace issued the statement: “Princess Marina, Duchess of Kent, died in her sleep at her home this morning”. Her Dr's issued the statement: “The Princess had been suffering for some weeks from an inoperable brain tumor".
The Royal Order of Sartorial Splendor: Flashback Friday: British Engagement Rings, Part 2: Princess Marina's engagement ring is described by Leslie Field as a "square 7 carat Kashmir sapphire with a baguette diamond on either side set in platinum".