The Unique Crown of Esmeralda Gromeur is a 1296 years old piece made by Esmeralda Gromeur, a monarch living in Lisbon.
Considering its age and the quality of the work, people consider it of high value.
It is engraved with european patterns and some symbols pertaining to Shamanism.
This piece doesn't exist, but as a legend. It is said that in the year 1660, Emily Gromeur, the owner, made use of it in Lisbon to empower the Gromeur family. Now it is lost, or broken, we will never know.