Is it possible to calculate the inheritance for a deceased person who has two sons, seven daughters, four grandsons (sons of a deceased son), one granddaughter (daughter of a deceased son), and one wife, taking into account a will that establishes the deceased son's children and their mother in place of their father in the inheritance, and would the one-sixth share be forfeited by them? What is the share of the heirs from the quarter of his deceased wife, estimated at two million Saudi Riyals, and the share of the one-sixth from the right of his deceased daughter, estimated at two million Saudi Riyals, and the share of each individual heir from the fifty thousand Saudi Riyals?

The deceased's estate is divided as follows: The wife receives one-eighth due to the existence of a direct heir. The remainder is divided among the children, with the male receiving the share of two females. The grandchildren (children of the son) receive nothing because they are excluded by the direct sons. The estate consists of eighty-eight shares: eleven shares for the wife, and seventy-seven shares for the children (each male receives fourteen shares, and each female receives seven shares).

As for the deceased's will to substitute his deceased son's children and their mother in place of their father, if this means a bequest to them equivalent to their father's share had he been alive, then it is valid if it does not exceed one-third of the estate. Any amount exceeding one-third requires the approval of the heirs. The grandchildren do not inherit from their grandfather if his direct male children are alive. If the grandfather did not bequeath anything to them, it is recommended for the heirs to give them something from the estate.