Probate Code § 201

(a) Proceedings under this chapter shall be commenced in the superior court of the county of which the decedent was a resident at the time of death or in the superior court of any county in which the property is located.

(b) Proceedings under this chapter shall be commenced by filing a petition that sets forth all of the following information:

(1) The jurisdictional facts.

(2) A particular description of the affected property and of the interest of the petitioner in the property.