Oxides of the type LaCr1-yCuyO3 have been prepared using solid-state methods and their crystal structures refined using synchrotron X-ray powder diffraction. The solubility limit of Cu was found to be around y = 0.2, and such oxides are orthorhombic in space group Pbnm. X-ray absorption spectroscopy measurements at the Cr and Cu L-edges demonstrated that the Cr remains trivalent upon Cu doping, with the Cu being present as Cu(III). The oxides are found to be antiferromagnets, and the Neel temperature, T-N, decreases as the Cu content is increased. The crystal and magnetic structures of one example La(Cr0.85CU0.15)O-3 have been investigated between 3 and 350 K by neutron powder diffraction. The samples are semiconductors.