 Like Eschenau, Obereisenbach lay in the Nahegau, whose counts split into several lines, and at the time of its 1426 first documentary mention, the village belonged to the Lords of Steinkallenfels (or Stein-Kallenfels) in the "Hochgericht auf der Heide" ("High Court on the Heath") and, more locally, the "Vierherrengericht" ("Four-Lord Court"), whose seat was in nearby Sankt Julian.A 1336 document about Niedereisenbach spoke of an "inferiori Ysenbach", thus of a lesser place of this name, there might well have been a greater village as well, with the same name.In the 16th century, the Waldraves and Rhinegraves pledged their holding here to Palatinate-Zweibrücken under the duke at that time, Wolfgang, but the pledge was redeemed in 1559.