The novel covers the events in the life of the Ukrainian Roksolana (Hürrem Sultan) - the wife of Sultan Suleiman the Magnificent, which took place in 1540-1551, when she was at the zenith of glory and power. This woman had a significant influence on the policy of the Ottoman Empire. She mediated the Sultan's man to establish good neighborly relations with the Polish Jagiellonian dynasty, Queen Isabella of Hungary, her mother Bona Sforza, and her brother, King Sigismund II of Poland. The novel is based on Roksolana's love and diplomatic correspondence, archival documents, reports of European ambassadors in Istanbul, Ottoman chroniclers, and information from thorough investigations by Turkish, Polish, Ukrainian, German, Italian, and American historians. In the novel, not only the events and characters are real, but even their dialogues, which history has preserved to this day.