Detail
Type Ein. - Frohnberg is a Einöde (Outlying Farm).
BA Amberg - The Bezirksamt for Frohnberg is Amberg. The Bezirksamt is the District Office.
See Hahnbach - A See notation means the entry is dependent on another entry. In this case, Frohnberg is dependent on Hahnbach, which should be consulted for additional information.