  We present observations of two radio galaxies, J1835+620 and 3C338, both with
signs of having passed through different stages of core activity. The former
presents two symmetric and bright components within a typical FR II structure,
possibly resulting from two distinct phases of activity; the latter is a FR I
radio galaxy with two separated regions with different age properties, possibly
due to a switch-off and -on cycle in its core. In both sources, the optical
counterpart lies in a group of galaxies with indications of mutual interaction,
a scenario often invoked to explain triggering of core activity.
