Within the framework of multifunctional materials showing the presence of both magnetic and electrical properties, the lead¿based double perovskites Pb2BB¿O6 are recognized as systems with peculiar and unusual characteristics. The presence of Pb2+ in the A site leads to a series of different structural distortions generally associated to anti-ferroelectric order which is suggested to feature also Pb2MnWO6 (PMW) and Pb2CoWO6 (PCW). We have recently synthesized and characterized Pb2Mn1-xCoxWO6 solid solutions, showing an unexpected magnetic behaviour involving a remarkable increase of the characteristic transition temperatures. Preliminary measurements on these systems indicate a complex magnetic structure, as in the case of the PMW sample, and strong spin-lattice coupling that makes this compound interesting for technological application.