Massive $z\sim1.3$evolved galaxies revealed *

We present the results of TNG near-IR low resolution spectroscopy of two (S7F5_254 and S7F5_45) sources belonging to a complete sample of 15 EROs with K'$<18$and $R-K'$$>5$selected from the MUNICS Survey. Both the spectra show a sharp drop in the continuum which can be ascribed only to the Balmer break. This places them at 1.2 $<z<1.5$. Their rest-frame $z=1.2$K-band absolute magnitude is $M_K\simeq-26.6$(L$\sim7L^*$). The comparison of the spectra and the photometric data with a grid of synthetic template spectra provides a redshift $z\simeq1.22^{-0.07}_{+0.2}$for S7F5_254 and $z\simeq1.46\pm0.02$for S7F5_45. The resulting lower limits to their stellar mass are $\mathcal{M}_{{\rm stars}}^{{\rm min}}=6\times10^{11}~M_\odot$and $\mathcal{M}_{{\rm stars}}^{{\rm min}}=4\times10^{11}~M_\odot$. The minimum age of the last burst of star formation in S7F5_254 is 3.5 Gyr while it is 0.5 Gyr in S7F5_45 implying a minimum formation redshift $z_{\rm f}\ga3.5$and $z_{\rm f}\ga2$for the two EROs respectively.