|1137 - 1199|
|Partitioned from Niederlahngau||1137|
Isenburg-Isenburg was the name of a state of the Holy Roman Empire, based around Isenburg in modern Rhineland-Palatinate, Germany. It was created as a partition of the Niederlahngau in 1137. It partitioned into Lower Isenburg and Isenburg-Braunsberg in 1199.
|Rembold IV||1137 - 1162|
|Rembold V||1152 - 1195|
|Bruno I||1152 - 1199|