X and Y both buy 10 shares in company C. X leaves the 10 shares, or the net sales thereof, to Y. X dies after having sold the shares and the value of the shares (say £1000) are inherited by Y, who then dies, leaving all Y's shares to two grandchildren, with the remainder of the estate left to Y's children. Do Y's grandchildren have any claim on the £1000? They would if Y had inherited the shares themselves, but what if Y inherited the net proceeds of the sale of the shares from X?
Let me ask a related question:
X and Y jointly own a house. X leaves his interest in the house, or the net proceeds of the sale of the house, to Y. Y bequeaths her interest in the house, or the net proceeds of her interest, to A and B and the remainder of her estate to C. The house is sold, with X's share of the proceeds being £200,000, say. X dies, with Y inheriting the £200,000. Y then dies. Do A and B have any claim on the £200,000 inherited from X or will it be passed to C?