In 1286 he partitioned his lands between his sons, and Gerlach as the youngest received those around Bad Hönningen.
Isenburg-Arnfels was the name of a state of the Holy Roman Empire, based around Bad Hönningen in modern Rhineland-Palatinate, Germany.
Bad Kreuznach (district) | Bad Nauheim | Bad Company | Bad Religion | The Good, the Bad and the Ugly | ''Verbandsgemeinde'' of Bad Marienberg | Bad Marienberg (Verbandsgemeinde) | Nick Cave and the Bad Seeds | Bad Frankenhausen | Bad Brains | Bad Oeynhausen | Bad Langensalza | Breaking Bad | Bad Kissingen | Bad Segeberg | Bad Manners | Bad Hersfeld | Bad Tölz | Bad Sulza | Bad Lauchstädt | Bad Kreuznach | Bad Gastein | Horn-Bad Meinberg | Big Bad Wolf | Bad Lippspringe | Bad Copy | Bad | Bad Schwalbach | Bad Santa | Bad Kleinen |
Isenburg-Arnfels was created upon the partition in 1286 of the lands of Count Henry II between his sons, the youngest Gerlach receiving his territories in and around Bad Hönningen.