Prompt gamma-ray cascades in neutron-rich nuclei around doubly magic 132Sn have been studied at Eurogam II using a 248Cm fission source. Here we report results for the four-valence-proton N=82 nucleus 136Xe and for its N=83 neighbor 137Xe. For both nuclei, the yrast level spectra have been considerably extended, and empirical nucleon-nucleon interactions have been used to assign probable shell model
