Prince Crown. Design commonly found in France, Italy and Spain (source: <a href="https://pl.wikipedia.org/wiki/Korona_rangowa" class="extiw" title="pl:Korona rangowa">Polish article</a>). It is the ducal crown in the kindgom of France
Tomasz Steifer, Gdansk
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span>