The recent renaissance of Magnetoelectrics (MEs) was spurred by the discovery of novel natural MEs and the expectation that large interaction coefficients could be achieved with ME composites (MECs). The highest degree of self-organization has been achieved by 3D epitaxial fabrication of 1-3 MECs. The self-organizing capabilities of diblock copolymers are well known and have been used increasingly to synthesize highly ordered photonic, electronic and acoustic nano-structures. This presentation reports on the successful synthesis and characterization of a two-phase multiferroic nano-composite that was achieved through the simultaneous templating of two separate inorganic phases from two sol/gel precursors. Choosing ferromagnetic cobalt ferrite and ferroelectric lead zirconium titanate as the two inorganics resulted in a self-organized magnetoelectric 1-3 nanocomposite whose initial magnetic permeability can be changed by a factor of five through the application of 2.5V compatible with telecommunication applications.