California Code, Probate Code - PROB § 2581

(a) The persons required to be given notice under Chapter 3 (commencing with Section 1460) of Part 1.

(b) The persons required to be named in a petition for the appointment of a conservator.

(c) So far as is known to the petitioner, beneficiaries under any document executed by the conservatee which may have testamentary effect unless the court for good cause dispenses with such notice.

(d) So far as is known to the petitioner, the persons who, if the conservatee were to die immediately, would be the conservatee's heirs under the laws of intestate succession unless the court for good cause dispenses with such notice.

(e) Such other persons as the court may order.