Mitsuko Daiba
Tadashi Daiba's mother, Mitsuko died on an outpost on Neptune's moon Triton when he was twelve. Though blameless in the accident which destroyed the base, she was fingered by the earth government as responsible to divert attention from their own failure to send a relief mission in time. The Mazone P.O.W. Lola used hypnotic abilities to impersonate Mitsuko and trick Tadashi into divulging secrets about the Arcadia and then releasing her. Not until he faces down Lola for the final time is Tadashi able to come to grips with his mother's death. (Source: cornponeflicks.org/harlock/friends.html)