Artworks - questioned but later authenticated,

The authentication of artworks, especially those initially doubted or disputed, can be a complex and evolving process. While there are instances where artworks were initially questioned but later authenticated, it's important to note that such cases are not uniform, and authentication outcomes can vary. Here are a few examples:

Caravaggio's "Judith Beheading Holofernes": In 2014, an Italian couple discovered what they believed to be a lost Caravaggio painting in their attic. The artwork depicted the biblical scene of Judith beheading the Assyrian general Holofernes. After initial skepticism from some experts, further research and analysis supported the attribution to Caravaggio. As of my last reckoning the debate over its authenticity was ongoing.

Leonardo da Vinci's "Salvator Mundi": Perhaps one of the most famous recent cases, "Salvator Mundi" was sold in 2017 as a work by Leonardo da Vinci for a record-breaking sum. While the attribution was initially met with some skepticism, the painting was later authenticated by some experts. However, there has been ongoing debate, and as far as I am aware the painting's attribution remains a subject of discussion in the art world.

Vincent van Gogh's "Sunset at Montmajour": In 2013, the Van Gogh Museum in Amsterdam announced the authentication of a previously unknown work titled "Sunset at Montmajour." The painting had been in a private collection for many years, and its attribution to Van Gogh was initially uncertain. After thorough research, including stylistic analysis and examination of the materials used, the museum declared it an authentic Van Gogh.

Peter Paul Rubens' "Samson and Delilah": The painting "Samson and Delilah" was initially doubted and attributed to a follower of Rubens. However, after a thorough restoration and reevaluation in the early 20th century, it was eventually recognized as an authentic work by Rubens. The painting is now considered one of his masterpieces and is housed in the National Gallery in London.

It's important to keep in mind that the process of authentication can be ongoing, and new discoveries or research may lead to changes in attribution over time. Additionally, not all contested works are ultimately authenticated, and some remain the subject of ongoing debate within the art community.