(

a) Where proceedings for the administration of the estate of the decedent are not pending when the petition is filed under this

chapter and the petition under this

chapter is not joined with a petition for the probate of the decedent’s will or for administration of the estate of the decedent, the petitioner shall give notice of the hearing on the petition as provided in

Section to (1) each person named as executor in the decedent’s will and to (2) each heir or devisee of the decedent, if known to the petitioner. A copy of the petition shall be sent with the notice of hearing to the surviving spouse, each child, and each devisee who is not petitioning. (

b) If the petition under this

chapter is filed with a petition for the probate of the decedent’s will or with a petition for administration of the estate of the deceased spouse, notice of the hearing on the petition shall be given to the persons and in the manner prescribed by

Section and shall be included in the notice required by that section. (

c) If proceedings for the administration of the estate of the decedent are pending when the petition is filed under this

chapter and the hearing of the petition for probate of the will or administration of the estate of the decedent is set for a day more than days after the filing of the petition filed under this chapter, the petition under this

chapter shall be set for hearing at the same time as the petition for probate of the will or for administration of the estate, and notice of hearing on the petition filed under this

chapter shall be given by the petitioner as provided in

Section 1220. If the hearing of the petition for probate of the will or for administration of the estate is not set for hearing for a day more than days after the filing of the petition under this chapter, (1) the petition filed under this

chapter shall be set for hearing at least days after the date on which it is filed, (2) notice of the hearing on the petition filed under this

chapter shall be given by the petitioner as provided in

Section 1220, and (3) if the petition for probate of the will or for administration of the estate has not already been heard, that petition shall be continued until that date and heard at the same time unless the court otherwise orders.