In 1737 Count Otto Thott bought the estate and set about creating what is called today 'Gavnø Castle'. An additional story was added to the surviving ranges, and the Rococo style exterior was added. The south range of the complex is the old dormitory of the priory. Thott was a collector of books, so spaces were created for the 200,000 books in his library, one of the largest private collections in Europe. The walls were hung with the hundreds of paintings he amassed. At his death all the books published before 1530 were donated to the Royal Library in Copenhagen.

• http://en.wikipedia.org/wiki/St. Agnes' Priory, Gavnø