Pegasus I is located at 50 Mpc and is dominated by two massive elliptical galaxies: NGC 7619 and NGC 7626. This group, though not very massive, is rich in late-type galaxies and represents an interesting environment to study several phenomena related to galaxy evolution (interactions, fusions, harrassment, etc.): the fusion of two sub-groups seem to be taking place. In this context we began the study of the globular clusters associated to the two dominant galaxies, and the dwarf galaxies that are found around them. Our aim is to try to identify the physical processes involved in the assembling of Pegasus I.