Bayan mutuwar mahaifinsa, Malichus II, ar-Rabil har yanzu yaro ne, ya hau gadon sarauta. Mahaifiyarsa, Shaqilath, ta karɓi iko da gwamnati a farkon shekarun. 'Yar'uwarsa Gamilath ta zama sarauniyar Nabataeans. Ar-Rabil ya ba kansa lakabin Helenanci "Soter", ma'ana "Mai Ceto", ko "wanda ya ba da rai da ceto ga mutanensa".Bayan mutuwarsa a shekara ta 106, Sarkin Roma Trajan bai fuskanci juriya ba kuma ya ci mulkin a ranar 22 ga Maris 106. Ya zama lardin Arabiya Petraea, tare da Bosraea ya zama babban birnin lardin. Tambaya: Wanene ya yi mulki daga 70 zuwa 106?
Rabel II Soter