  Among the Active Galactic Nuclei (AGN) that have suffered type mutations, the
classically classified Seyfert 2 NGC 7582 recently found at a Seyfert 1 stage,
is perhaps one of the most puzzling cases, since it defies a well supported
case for unification. We investigate the possibility that this type transition,
common to other 12 AGN, is driven by supernovae (SN) exploding in a
nuclear/circumnuclear starburst.
