California Code
CHAPTER 4.6 - Actions Concerning Real Property Titles Affected by Public Improvement Assessments
Section 801.14.

801.14. The decree, after it has become final, is conclusive against all persons named in the complaint who have been served and all unknown persons and the heirs and devisees of deceased persons designated in the complaint and served as hereinbefore provided.

(Added by Stats. 1949, Ch. 1108.)