brought the paintings from Berlin for his own use at Wawel Castle. But when the Germans evacuated Kraków in January 1945, he took the paintings with him to Silesia and then to his own villa in Neuhaus. The Americans arrested Dr. Frank on May 4, and the Polish representative at the Allies Commission for the Retrieval of Works of Art claimed the stolen paintings on behalf of the Czartoryski Museum. However, the Raphael and 843 other artifacts were missing from the collection. The whereabouts of these works, remain unknown to this day. After World War II After World War II, the Museum was reopened and operated by Poland's communist government. Amid the country's desperate economic situation, the Museum survived thanks largely to the work of Professor Marek Rostworoski, who dedicated his life to the collections. In 1991 the High Court of the Nation returned the Museum to its rightful owner, Prince Adam Karol Czartoryski, along with the library housed nearby; from 1961 the library had been located in a building at ulica świętego Marka (St. Mark's Street). In 1971 the Czartoryski Library was recognized as National Library. The Library's collections include many extremely important European historical documents: a total of 224,576, including 70,009 books published before 1800, 13,552 manuscripts, and 333 incunabula. The Library comprises a "Prints and Cartography Division" and a "Manuscripts and Archives Division". The President of the Institution is Jolanta Lenkiewicz. The Library's books may be consulted only on the premises. The Museum was administered from 1991 through 2016 by the Princes Czartoryski Foundation, set up for that purpose in 1991 by Prince Adam Karol Czartoryski. It welcomed more than 12,000 visitors a year and has organized exhibitions in the United States (Washington, D.C.), Italy (Rome, Milan, Florence), the United States (Milwaukee, Huston, San Francisco), Sweden (Malmö, Stockholm), Turkey (Istanbul), Japan (Kyoto, Nagoya, Yokohama), Spain (Royal Palace, Madrid), and the United Kingdom (National Gallery, London). In autumn 2002, the Lady with an Ermine was featured at the Milwaukee Art Museum's tribute to the Splendor of Poland; in 2003 the portrait and other collection items went on to Houston and San Francisco. In 2010 the Museum closed for repairs and modernization. Parts of the collection were temporarily displayed in other venues. 350 selected items were shown in the Arsenal building, while the Lady with an Ermine was displayed in the Kraków National Museum. In 2016 the collections and