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Apr 06, 2026
Heirship may feel obvious inside a family, but in court it still must be proved. Louisiana procedure allows the deceased’s death, marriage, and the facts necessary to establish the relationship of heirs to be proved by official certificates or affidavits, and it likewise permits jurisdictional facts such as domicile and Louisiana property ownership to be shown by affidavit in the right case. La. C.C.P. art. 2821.
What the affidavit procedure requires
The affidavits used under Article 2821 must be executed by two persons having knowledge of the facts and filed into the succession record. Louisiana does not require that both affiants be disinterested, but the court still expects the proof to be competent, specific, and tied to the facts that actually matter in the succession. La. C.C.P. art. 2822.
In practice, that means heirship proof should identify the spouse, descendants, ascendants, or collateral relatives whose rights are implicated and should line up with any relevant death certificates, birth records, marriage records, judgments of adoption, or acknowledgment documents. Where filiation is disputed, the succession may require far more than family recollection. La. C.C. arts. 196, 197, 880.
When affidavits are not enough
Article 2823 gives the court discretion to demand further evidence of any fact stated in the affidavits. That is a significant safeguard because ex parte successions can move quickly, and a court is not required to accept conclusory heirship proof at face value. La. C.C.P. art. 2823.
Once the issue becomes contradictory, Louisiana draws a hard procedural line – no fact that is actually at issue in a contradictory succession proceeding may be proved by affidavit under Articles 2821 and 2822. Instead, factual disputes must be decided by evidence introduced as in ordinary cases. La. C.C.P. art. 2824.
Why this matters
These rules matter because heirship problems frequently sit at the center of larger succession disputes. In Taboni, the claimant could not establish standing to enforce a promissory note held by the decedent because he had not proved he was an heir through the documents or affidavit procedure contemplated by Louisiana law. Taboni v. Estate of Longo, 803 So. 2d 55 (La. App. 4 Cir. 2001), rev’d on other grounds, 810 So. 2d 1142 (La. 2002).
The proof burden also matters in forced-heirship litigation and testamentary-capacity disputes. In Succession of Ferguson, a forced-heir claimant lost because the record did not show the affiants or executrix had reason to know of the claimed disability at the relevant time. In re Succession of Ferguson, 114 So. 3d 1260 (La. App. 2 Cir. 2013).
Field Law can help
An heirship issue that looks minor at the start can control possession, administration, and title later. If you need to prove who the heirs are in a Louisiana succession, Field Law can identify what proof is sufficient, what proof is missing, and when the matter is likely to move from ex parte procedure into full litigation.
