Gerlach I of Isenburg-Arnfels, Count of Isenburg-Arnfels from 1286 (1287) until 1303
Gerlach I of Nassau (before 1288 – 7 January 1361), Count of Nassau in Wiesbaden, Idstein, Weilburg, and Weilnau.
Jim Gerlach | Gerlach | Steve Gerlach | Gerlach I of Isenburg-Arnfels | Ludwig Friedrich Leopold von Gerlach | Louis Gerlach Pareau | Gerlach IV of Isenburg-Limburg | Christian Gerlach |
Gerlach I abdicated in 1344, in favour of his sons, except he kept Sonnenberg Castle, where he lived.