4 artworks sell for more than $50 million each; extensive collection went on the block after couple unable to agree on valuation in acrimonious split

Downgrade by curators at Museo Nacional del Prado comes after years of questions over attribution of Jesus painting sold at record-setting auction

In response to court over public sale of Holocaust items, top legal authority says it is 'morally, ethically, nationally and publicly wrong'

'Such an evil item can't have an owner,' Holocaust survivors' group argued; Yad Vashem protested sale as 'morally unacceptable'

Yad Vashem condemns sale by 'greedy traders,' says there may be a need for legislation; auctioneer defends sale

Efforts made to stop auction, as some call on France to declare book a national treasure; sale to private collector points to precarious state of some public Judaica collections

'Girl with a Balloon' was retitled 'Love is in the Bin' and sold at a Sotheby's auction for close to 20 times the price of the original artwork

Vienna-based seller im Kinksy is at the center of a dispute between grandchildren of a couple murdered in the Holocaust and a 2008 buyer whose anonymity it is sworn to maintain

Christie's expects handwritten manuscript of theory's early version to fetch up to $4 million when it goes up for sale in November; the only other similar document is in Israel

Documents detailing births, deaths and marriages dating back to the 19th century are purchased by the National Library of Israel and the Hungarian Jewish Museum and Archives