"The markings on the backside of this piece indicate that it was once set in something."
The Royal Insignia is a treasure item that appears in Resident Evil 4. It is the insignia of the Salazar Family that can be combined with the Crown and Crown Jewel to recreate the Salazar Family Crown. On its own, it can be sold for 13,000₧.
- Hamamura, Koichi, ed (2006) (in Japanese). biohazard4 kaitaishinsho revised edition. Famitsu. ISBN 978-4-7577-2638-3.