And for them a fourth of what you leave , if you have no children ; but if you have children , then for them of what you leave an eighth , after any bequest you may bequeath , or any debt . If a man or a woman have no heir direct , but have a brother or a sister , to each of the two a sixth ; but if they are more numerous than that , they share equally a third , after any bequest he may bequeath , or any debt not prejudicial ; a charge from God .