Detail
Type Hof - Ludwigsruhe is a Hof (Farm, Manor, Courtyard).
OA Gerabronn - The Oberamt for Ludwigsruhe is Gerabronn. The Oberamt is a government district.
See Langenburg - A See notation means the entry is dependent on another entry. In this case, Ludwigsruhe is dependent on Langenburg, which should be consulted for additional information.