California Code, Probate Code - PROB § 10581

(a) Each known devisee whose interest in the estate would be affected by the proposed action.

(b) Each known heir whose interest in the estate would be affected by the proposed action.

(c) Each person who has filed a request under Chapter 6 (commencing with Section 1250) of Part 2, of Division 3 for special notice of petitions filed in the administration proceeding.

(d) The Attorney General, at the office of the Attorney General in Sacramento, if any portion of the estate is to escheat to the state and its interest in the estate would be affected by the proposed action.