This particular brooch probably was most certainly not made for The Tudors, as it seems almost nothing actually was. Therefore, it likely makes appearances in other productions, but has up until this point remained unspotted. However, the brooch does, astonishingly enough, make three appearances in the first season alone. It appears on the first episode on the character Anne Buckingham, then it appears with other jewelry that Henry has ordered for Anne in episode three, then on Henry VIII in episode nine. A somewhat careless oversight on the part of the production costumer - at least for those of us with eagle eyes for spotting recycled costumes.