The towering castles that dot England’s landscape symbolize power, conquest, and control. For centuries, they have been viewed as monuments to the Norman elite who reshaped the country after 1066.

Rafi Hoq told Newsweek he was "moved" when someone online revealed the tapestry's potential origins and worth.

Medieval art is full of unicorns. One famous example is the series of tapestries known as the Lady and the Unicorn, which now hang in the Musée Cluny in Paris. And the artworks have an unexpected ...