Key Points
French law classifies statutory heirs into four orders (C. civ. Art. 734). The first represented order inherits entirely and excludes all lower orders.
Within each order, the heir closest in degree takes precedence — subject to the representation mechanism, which allows remoter descendants (or collaterals) to step into the shoes of a pre-deceased, renouncing, or unworthy heir (C. civ. Art. 751).
The surviving spouse is not ranked in any order: they compete with the first two orders and exclude the third and fourth entirely (C. civ. Art. 757-2).
The fente successorale divides the estate equally between the paternal and maternal lines within the third and fourth orders (C. civ. Art. 747).
No one may inherit beyond the sixth degree of kinship. Beyond that, the estate passes to the State (déshérence) after a court order of envoi en possession (C. civ. Art. 745).
PACS partners and unmarried cohabitants have no statutory succession rights — they can inherit only under a valid testamentary provision.

Statutory Devolution: The General Principle

When a person dies, French law immediately and automatically vests their assets in the persons designated by statute as their heirs. This process — la dévolution légale de la succession — operates by operation of law, without prior formalities. The governing provision is C. civ. Art. 734, which classifies the potential heirs into four orders. The fundamental rule is simple: if any member of a given order survives the deceased, that order inherits the entire estate and excludes all lower orders. These rules apply to successions opened on or after 1 January 2007, as reformed by loi 2006-728 of 23 June 2006.

Testamentary Freedom

Statutory devolution is the default framework, not an absolute rule. A person may modify the distribution of their estate by will or by donation entre époux, subject to the reserved shares (réserve héréditaire) that guarantee certain close heirs a minimum portion. The statutory orders govern entirely in the absence of any such arrangement.

The Four Orders at a Glance

First Order
Descendants
Children, grandchildren, great-grandchildren, and all direct descendants without limit of degree. No distinction by gender, birth order, or whether filiation is biological or adoptive (full adoption).
Representation applies without limit of degree. Presence of any descendant excludes all other orders.
Second Order
Privileged Ascendants & Collaterals
Father and mother (or the survivor of them); brothers and sisters including half-siblings, and their descendants — nephews, nieces, and beyond — without limit of degree.
Mixed order. Father and mother each hold a fixed ¼ share. Representation applies to pre-deceased, renouncing, or unworthy siblings.
Third Order
Ordinary Ascendants
All ascendants other than the father and mother: grandparents, great-grandparents, and above in both the paternal and maternal lines.
The fente successorale divides the estate equally between the two lines. No representation. Excluded by a surviving spouse.
Fourth Order
Ordinary Collaterals
Uncles, aunts, great-uncles, great-aunts, and cousins of all degrees. Limited strictly to the sixth degree of kinship.
The fente applies. No representation. Excluded entirely by a surviving spouse.

First Order: Descendants

The first order consists of all persons in the direct descending line: children, grandchildren, great-grandchildren, and beyond without limit. It includes all children regardless of filiation (C. civ. Art. 735): legitimate, natural, or adoptive under a full adoption (adoption plénière). Whenever one or more members survive the deceased, they inherit the entire estate and exclude all other heirs.

Division within the First Order: The Degree Rule

Within the first order, inheritance passes to the heir closest in degree. The closer heir excludes the remoter one (C. civ. Art. 744, al. 1). Where multiple heirs stand at the same degree — two surviving children — they share the estate equally by head (C. civ. Art. 744, al. 2).

Example

The deceased leaves two surviving children A and B, together with two grandchildren C1 and C2 (children of a third child who predeceased). A and B, as first-degree relatives, exclude C1 and C2 unless the representation mechanism applies.

Representation

Representation (C. civ. Art. 751) is the legal fiction that calls the descendants of a pre-deceased, renouncing, or unworthy heir to exercise, in that heir's place, the rights the heir would have held. In the first order, representation applies in three situations: pre-decease before the deceased; renunciation of the succession (applicable since 1 January 2007 — C. civ. Art. 754, al. 1); and unworthiness (indignité successorale). Representation requires a plurality of souches (branches): it only operates if the deceased had more than one child (Cass. 1ère civ. 25-9-2013 n° 12-17.556). In the first order, representation operates without limit of degree. Division always takes place par souche (by branch).

Example — Representation of a Pre-deceased Child

The deceased leaves one surviving child A, and two grandchildren B1 and B2, children of B who predeceased. By representation, B1 and B2 step into B's place: A takes ½ and B1 and B2 share the remaining ½, each receiving ¼.

Example — Representation of a Renouncing Child

The deceased leaves a son A and three grandchildren B1, B2, and B3 — children of B, who renounces the succession. By representation, B1, B2, and B3 inherit in B's place: A takes ½ and each grandchild receives ⅙.

Second Order: Privileged Ascendants and Collaterals

The second order comes into play only in the absence of any surviving descendant. It is a mixed order comprising: the father and mother of the deceased (or the survivor of them); and brothers and sisters (including half-siblings) and all of their descendants without limit of degree (C. civ. Art. 734, al. 1-2°).

Distribution within the Second Order

Survivors presentDistribution
Father, mother, and siblingsFather: ¼ — Mother: ¼ — Siblings and their descendants: ½, shared equally
One parent and siblingsSurviving parent: ¼ — Siblings and their descendants: ¾, shared equally
Siblings only (no parents)Siblings (and their descendants) share the entire estate; ordinary ascendants and collaterals are excluded
Both parents, no siblingsFather: ½ — Mother: ½
One parent only, no siblingsThe surviving parent takes the whole estate, unless an ordinary ascendant survives in the other line (see fente exception below)

The father and mother each hold a fixed share of ¼. Within the sibling branch, representation operates where a sibling has pre-deceased, renounced, or been declared unworthy — their descendants step into their place by branch. Representation is excluded where there is only a single branch (Cass. 1ère civ. 14-3-2018 n° 17-14.583; Cass. 1ère civ. 3-10-2019 n° 18-18.736).

The Fente Exception: Second and Third Orders in a Single Succession

A structural exception arises when only one parent survives the deceased, there are no siblings, but ordinary ascendants exist in the other line. C. civ. Art. 738-1 provides in this case that the estate is divided equally: one half to the surviving parent and one half to the ordinary ascendants in the other branch. This is the single situation in which heirs from two different orders share the same succession.

Third Order: Ordinary Ascendants

The third order consists of all ascendants other than the father and mother: grandparents, great-grandparents, and beyond in both lines (C. civ. Art. 734, al. 1-3°). Called only when neither the first nor the second order is represented, and additionally only in the absence of a surviving spouse, who excludes the third order entirely (C. civ. Art. 757-2).

Within the third order, the estate is divided into two equal halves: one for the paternal line and one for the maternal line, by the fente successorale (C. civ. Art. 747). Within each line, the ascendant closest in degree takes the half allocated to that line. If one line produces no heir, its share passes entirely to the other line (C. civ. Art. 748, al. 3). No representation applies.

Example — Third Order, Two Lines

No descendants, no parents, no siblings, no surviving spouse. Paternal line: two paternal grandparents (second degree). Maternal line: one maternal great-grandmother (third degree).

The paternal grandparents divide the paternal half equally, each receiving ¼. The maternal great-grandmother takes the entire maternal half (½) because no maternal grandparent survives. The fente gives the great-grandmother ½ despite being less closely related than the grandparents.

Fourth Order: Ordinary Collaterals

The fourth order comprises relatives outside the three preceding orders: uncles, aunts, great-uncles, great-aunts, and cousins of all degrees — but only up to and including the sixth degree of kinship (C. civ. Art. 745). The fente successorale applies: the estate is divided equally between the paternal branch and the maternal branch (C. civ. Art. 749–750). Representation does not apply in the fourth order (C. civ. Art. 752-2, a contrario). The entire fourth order is excluded by the surviving spouse (C. civ. Art. 757-2).

Example — Fourth Order

No surviving spouse, no descendants, no parents, no siblings, no grandparents. Paternal branch: cousins germains C1 and C2 (fourth degree) and cousin issu de germain C3 (fifth degree). Maternal branch: an uncle (third degree) and a great-uncle (fourth degree).

C1 and C2 exclude C3 within the paternal branch and each receive ¼. The uncle, as the closest heir in the maternal branch, takes the entire maternal half (½), excluding the great-uncle.

The Degree System

In the direct line, degree equals the number of generations: parent–child is first degree; grandparent–grandchild is second degree. In the collateral line, degree is calculated by ascending to the closest common ancestor and then descending to the other person: siblings — second degree; uncle/aunt — third degree; cousins germains — fourth degree; cousins issus de germains — fifth degree.

The Surviving Spouse: Outside the Four Orders

The surviving spouse — the spouse who was not divorced at the date of death (C. civ. Art. 732) — is not ranked in any of the four orders. They compete with the first two orders; their entitlement varies considerably depending on whether the deceased's children are common children of the couple or include children from another relationship. The spouse excludes the third and fourth orders entirely: where a non-divorced spouse survives, neither ordinary ascendants nor ordinary collaterals receive anything (C. civ. Art. 757-2). The spouse benefits additionally from a non-waivable right of housing and, in certain circumstances, a right to a maintenance pension.

ℹ️
PACS Partners and Cohabitants

A partner under a PACS (pacte civil de solidarité) has no statutory succession rights whatsoever. Nor does an unmarried cohabitant. Both can inherit only if the deceased has made a valid testamentary provision in their favour — subject in each case to the reserved shares of the deceased's descendants.

The Sixth-Degree Limit and Succession by the State

Succession rights in the collateral line are capped at the sixth degree (C. civ. Art. 745). Where no heir survives within six degrees, there is no surviving spouse, and no valid testament or universal donee has been designated, the estate passes to the State. The State must first obtain a court order of envoi en possession before taking possession. Administration is entrusted to a curator under the curatelle de succession vacante regime.

Summary: Who Inherits and in What Circumstances

Survivors at deathWho inherits and in what proportions
Children only (no spouse)Children in equal shares; representation by branch for any pre-deceased child's line
Spouse + common childrenSpouse: choice of full usufruct over all assets or ¼ in full ownership — Children: remainder
Spouse + children from another relationshipSpouse: ¼ in full ownership (fixed, no choice) — Children: ¾
Spouse + both parents + siblings (no children)Spouse: ¼ — Father: ¼ — Mother: ¼ — Siblings: ¼ shared equally
Spouse + siblings only (no children, no parents)Spouse: ½ — Siblings: ½ shared equally
Spouse only (no children, no parents, no siblings)Spouse: entire estate in full ownership
No spouse; both parents + siblings (no children)Father: ¼ — Mother: ¼ — Siblings: ½ shared equally
No spouse; grandparents only (no children, parents, siblings)Paternal grandparents: ½ shared equally — Maternal grandparents: ½ shared equally
No spouse, no 1st or 2nd order; ordinary collaterals onlyOrdinary collaterals within 6th degree, divided by line then by degree; no representation
No heir within 6th degree, no spouse, no willState (déshérence) after court order of envoi en possession
Planning Note

The statutory framework described here reflects the default position where the deceased made no testamentary provision and no lifetime gifts. In practice, the statutory distribution is frequently modified by wills, donations entre époux, and donations-partages. Any such planning remains subject to the réserve héréditaire, which guarantees a minimum share to surviving descendants and, in the absence of descendants, to the surviving spouse.

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This article is provided for general informational purposes only and does not constitute legal advice. French succession law is complex and its application depends on the specific facts of each situation, including the composition of the estate, family structure, the deceased's domicile, and any prior testamentary or donation arrangements. Cross-border estates may additionally be governed by EU Succession Regulation No. 650/2012 (Brussels IV). Readers should consult a qualified French lawyer before taking any steps in connection with a French succession.