Query: Where does 'The Kidnapping of Edgardo Mortara' take place?
Context: After completing filming on Ready Player One, while it is in its lengthy, effects-heavy post-production, he will film his long-planned adaptation of David Kertzer's acclaimed The Kidnapping of Edgardo Mortara. The book follows the true story of a young Jewish boy in 1858 Italy who was secretly baptized by a family servant and then kidnapped from his family by the Papal States, where he was raised and trained as a priest, causing international outrage and becoming a media sensation. First announced in 2014, the book has been adapted by Tony Kushner and the film will again star Mark Rylance, as Pope Pius IX.