(a) A petition may be filed under this chapter by any of the following:
(1) The person named in the will of the decedent as executor.
(2) The surviving spouse of the decedent.
(3) The guardian of a minor child of the decedent.
(4) A child of the decedent who was a minor at the time the decedent died.
(5) The personal representative if a personal representative has been appointed for the decedent’s estate.
(b) The guardian of a minor child of the decedent may file the petition without authorization or approval of the court in which the guardianship proceeding is pending.