ENThe author of this book is a well-known researcher of Early Modern Period Lithuanian history. She has been analysing the political development and political culture in the Grand Duchy of Lithuania in her work for several decades, making broad use of a comparative approach in her research. Jūratė Kiaupienė was one of the first historians in Lithuania to choose the broader spatial context of the Central East European region for the analysis of selected issues. She was also one of the first researchers to apply the political nation concept to the study of socio-political phenomena in Lithuanian historiography. The political nation describes the politically active part of a multinational society in the Early Modern Period. The historian has laid out and discussed the fundamental provisions of her research, and the most important questions in her fields of analysis, in numerous articles, and in a monograph published in 2004, ‘Mes Lietuva’. Lietuvos Didžiosios Kunigaikštystės bajorija XVI a. (viešas ir privatus gyvenimas) [‘We are Lithuania’. The Nobility of the Grand Duchy of Lithuania in the 16th Century (Public and Private Life)]. Thus, the monograph under review may be considered the final result of many years of work, signalling a specific level of maturity in her research. [...].