https://www.bloomberg.com/news/articles/2019-01-25/rothschilds-sell-last-piece-of-austrian-empire-after-200-years

https://www.zerohedge.com/news/2019-02-28/100-million-extremely-rare-intensely-private-artwork-just-hit-block-and-most-didnt

https://www.christies.com/features/Jewellery-worn-by-royalty-7847-1.aspx

https://www.telegraph.co.uk/news/2018/10/30/3000-year-old-assyrian-palace-artifact-goes-sale-auction-new/