The establishment of diplomatic relations between the Czech Republic and the Principality of Liechtenstein in 2009 removed the remaining obstacles to a debate on the common Czech-Liechtenstein history and paved the way for a thorough, joint and collective historical research. The Czech-Liechtenstein Historians Commission was set up to provide a platform for an expert debate on the aspects of the relationship between the Czech Republic and the Principality of Liechtenstein/ Princely House of Liechtenstein that, in the general view, have yet to be addressed or examined properly. The aim was to bring together selected researchers representing both sides and to give them an opportunity to compare their approaches, methodologies, research traditions, and their experience of working in different archival contexts. This enabled a deep debate on the historical phenomena shaping this fruitful and united as well as dramatic and divisive relationship, their development and causes. The Commission presents in a publication the results of the research done between 2009 and 2013, in the hope that they will contribute to mutual understanding and help develop the relations in areas other than historical research.