Detail
Type Gut - Frohsein is a Gut (Estate).
Kr Eckernförde - The Kreis for Frohsein is Eckernförde. A Kreis is a government district (similar to a U.S. county).
See Windeby - A See notation means the entry is dependent on another entry. In this case, Frohsein is dependent on Windeby, which should be consulted for additional information.