This brooch is inspired by a necklace worn by Princess Diana on many occasions with either an emerald or sapphire drop. Although the three feathers are commonly known as the Prince of Wales Feathers, it is actually the badge of the heir apparent, whether Prince of Wales or not. The badge comprises three silver ostrich feathers which rise through a coronet of crosses pattee and fleur-de-lis, all gold, along with the motto ‘ICH DIEN’ (I Serve). The use of ostrich feathers in royal heraldry is first found during the reign of Edward III. The circumstance of their adoption is obscure, but may have derived through the house of Hainault; Edward III married Philippa of Hainault in 1329. The feathers were later adopted by the Princes of Wales.