In the title compound, {[Ag2Fe(CN)4(H 2O)2]·2C12H10N2} n , the asymmetric unit contains one FeII cation, two water molecules, two dicyanidoargentate(I) anions and two uncoordinating 1,2-bis(pyridin-2-yl) ethylene (2,2′-bpe) molecules. Each FeII atom is six-coordinated in a nearly regular octahedral geometry by four N atoms from dicyanidoargentate(I) bridges and two coordinating water molecules. The Fe II atoms are bridged by dicyanidoargentate(I) units to give a two-dimensional layer with square-grid spaces. The intergrid spaces with interlayer distance of 6.550(2)Å are occupied by 2,2′-bpe guest molecules which form O - H⋯N hydrogen bonds to the host layers. This leads to an extended three-dimensional supramolecular architecture. The structure of the title compound is compared with some related compounds containing dicyanidoargentate(I) ligands and N-donor organic co-ligands. -------------------------------------------------------------------------------- --------------------------------------------------------------------------------