The works written at historical geography area have very rich information and these works are also important sources for Middle Ages history works. Historical geography works includes especially geographic and historical information. Besides they have cultural, ethnologic, anthropologic, demographic and folkloric information too. These information are important for historians and they have to deal with them. Because, history is not information masses, arranged in order by political facts. Political facts must be supported by geographic, cultural information, and so forth. Such evaluation of political facts would make history to be understood.