According to Article 10 of the Inheritance Law, inheritance shall be carried out in the following order:
 First order: spouse, children, parents.
 The second order: brothers and sisters, grandparents, maternal grandparents.
 After the beginning of succession, the successor in the first order shall inherit, and the successor in the second order shall not inherit. If there is no successor in the first order, the successor in the second order shall inherit.
 After your wife died, you were not the first heir to his parents' inheritance. The successor in subrogation is only limited to the direct blood relatives of the younger generation of the successor in subrogation, that is, only the children, grandchildren, grandchildren, etc. of the person in subrogation can become the subrogation person, without the limitation of seniority;