Thank you for sharing your find here. It does open up a whole lot of different possibilities as to how the brooch came into the possession of the Duchess of Gloucester. I actually thought that it "must" have come via the Royal Family, but of course that is of course narrowing it down too much without any real evidence. And now that we have seen the Duchess wear the brooch before her marriage to the Duke of Gloucester it is just as plausible a piece from the Duchess' side of the family.