Anatomical investigations of one hundred human temporal bones revealed a significant variability of the promontory bridge (ponticulus promontorii). In twelve bones double and in two-triple promontory bridge was observed. The triple promontory bridge had not been previously described in available literature. In all the cases the double or triple promontory bridges were observed only on the temporal bones obtained from cadavers of up to four years of age. It confirms previous statements suggesting that development of this structure is connected with the process of pneumatization of the statements suggesting that development of this structure is connected with the process of pneumatization of the temporal bone, which obviously starts in 3-4 year of life.