Detail
Type Forsth. - Rathsgrenz is a Försthaus (Forester's house).
Kr Wehlau - The Kreis for Rathsgrenz is Wehlau. A Kreis is a government district (similar to a U.S. county).
See Leipen 1) - A See notation means the entry is dependent on another entry. In this case, Rathsgrenz is dependent on Leipen 1), which should be consulted for additional information.