The Dizionario del cinema italiano, Vol 6, Part 2 by Roberto Chiti,Roberto Poppi,Enrico Lancia says that she uses this pseudonym, but I would like to have confirmation. Concerning her possible family ties with Luciano and Sergio Martino (brothers), I simply don't know, but she worked in one of Sergio's films, so I am assuming they have something in common beyond the lastname.