Context : The Bulge Globular Clusters ( GCs ) are key tracers of this central ancient component of our Galaxy .
It is essential to understand their formation and evolution to study that of the bulge , as well as their relationship with the other Galactic GC systems ( halo and disk GCs ) .
High resolution spectroscopy is a powerful tool for such studies , allowing us to obtain a detailed chemical characterization and kinematics of the clusters and to compare their chemical patterns with those of their halo and disk counterparts .

Aims : Our main goals are to obtain detailed abundances for a sample of seven red giant members of NGC 6528 in order to characterize its chemical composition and study the relationship of this GC with the bulge , and with other bulge , halo and disk GCs .
Moreover , we analyze this cluster ’ s behavior associated with the Multiple Populations ( MPs ) phenomenon .

Methods : We obtained the stellar parameters and chemical abundances of light elements ( Na , Al ) , iron-peak elements ( V , Cr , Mn , Fe , Co , Ni , Cu ) , \alpha -elements ( O , Mg , Si , Ca , Ti ) and heavy elements ( Zr , Ba , Eu ) in seven red giant members of NGC 6528 using high resolution spectroscopy from FLAMES-UVES .

Results : We obtained in six stars of our sample a mean iron content of [ Fe/H ] =-0.14 \pm 0.03 dex , in good agreement with other studies .
We found no significant internal iron spread .
We detected one candidate variable star , which was excluded from the mean in iron content , we derived a metallicity in this star of [ Fe/H ] =-0.55 \pm 0.04 dex .
Moreover , we found no extended O-Na anticorrelation but instead only an intrinsic Na spread .
In addition , NGC 6528 does not exhibit a Mg-Al anticorrelation , and no significant spread in either Mg or Al .
The \alpha and iron-peak elements show good agreement with the bulge field star trend .
The heavy elements are slightly dominated by the r-process .
The chemical analysis suggests an origin and evolution similar to that of typical old Bulge field stars .
Finally , we find remarkable agreement in the chemical patterns of NGC 6528 and another bulge GC , NGC 6553 , suggesting a similar origin and evolution .

Conclusions :