Just as one performs Shraddha for his father, he should do the same for the wives of the father as well. He should do similarly for his own dead wives, elder brothers, paternal uncles and maternal grand father. Oblations are to be made in the aupasanagni (the marital fire), and those of the Shraddha in the ordinary fire. Even the son of a co-wife has the right to perform the Shraddha of a wife belonging to another caste. But the husband should not do it.