We present the discovery of a triplet of emission-line nuclei in the disturbed disk galaxy NGC 3341 , based on archival data from the Sloan Digital Sky Survey and new observations from the Keck Observatory . This galaxy contains two offset nuclei within or projected against its disk , at projected distances of 5.1 and 8.4 kpc from its primary nucleus and at radial velocity separation of less than 200 km s ^ { -1 } from the primary . These appear to be either dwarf ellipticals or the bulges of low-mass spirals whose disks have already been stripped off while merging into the primary galaxy . The inner offset nucleus has a Seyfert 2 spectrum and a stellar velocity dispersion of 70 \pm 7 km s ^ { -1 } . The outer offset nucleus has very weak emission lines consistent with a LINER classification , and the primary nucleus has an emission-line spectrum close to the boundary between LINER/H ii composite systems and H ii nuclei ; both may contain accreting massive black holes , but the optical classifications alone are ambiguous . The detection of an offset active nucleus in NGC 3341 provides a strong suggestion that black hole accretion episodes during minor mergers can be triggered in the nuclei of dwarf secondary galaxies as well as in the primary .