Who inherits the state grant given in the name of the martyr's mother, who died before his martyrdom, given that the martyr's father and full and half siblings are still alive?

If the state grants land to the heirs of a martyr, knowing that the deceased mother has passed away, then it is permissible for the heirs to own it, because the deceased does not own anything after death. The land is then divided as the state deems fit, since it was not the property of the deceased. However, if the heirs defrauded the state to obtain it, they must return it to the state, as this constitutes forbidden deception.