The Disturbing Crown of Alda Yurkaya is a 789 years old piece made by Alda Yurkaya, a monarch living in Paris.
Considering its age and the quality of the work, people consider it of some 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 1715, Deirdre Yurkaya, the owner, made use of it in Paris to empower the Yurkaya family. Now it is lost, or broken, we will never know.