Tex. Estates Code § 203.001

(a) A court shall receive in a proceeding to declare heirship or a suit involving title to property a statement of facts concerning the family history, genealogy, marital status, or the identity of the heirs of a decedent as prima facie evidence of the facts contained in the statement if:

(1) the statement is contained in:

(A) an affidavit or other instrument legally executed and acknowledged or sworn to before, and certified by, an officer authorized to take acknowledgments or oaths, as applicable; or

(B) a judgment of a court of record; and

(2) the affidavit or instrument containing the statement has been of record for five years or more in the deed records of a county in this state in which the property is located at the time the suit involving title to property is commenced, or in the deed records of a county in this state in which the decedent was domiciled or had a fixed place of residence at the time of the decedent's death.

(b) If there is an error in a statement of facts in a recorded affidavit or instrument described by Subsection (a), anyone interested in a proceeding in which the affidavit or instrument is offered in evidence may prove the true facts.

(c) An affidavit of facts concerning the identity of a decedent's heirs as to an interest in real property that is filed in a proceeding or suit described by Subsection (a) may be in the form prescribed by Section 203.002.

(d) An affidavit of facts concerning the identity of a decedent's heirs does not affect the rights of an omitted heir or creditor of the decedent as otherwise provided by law. This section is cumulative of all other statutes on the same subject and may not be construed as abrogating any right to present evidence or rely on an affidavit of facts conferred by any other statute or rule.