
354 S.E.2d 291 (1987)
Vivian C. ALLRED, Executrix of the Estate of Shirley Allred Tucci, Substituted Plaintiff,
v.
James Michael TUCCI.
No. 8621DC946.
Court of Appeals of North Carolina.
April 7, 1987.
*293 Morrow and Reavis by John F. Morrow and Clifton R. Long, Jr., Winston-Salem, for plaintiff.
Harrison, Benson, Worth, Fish, North, Cooke & Landreth by A. Wayland Cooke and Michael C. Landreth, Greensboro, for defendant.
MARTIN, Judge.
G.S. 1A-1, Rule 60(b) provides, in pertinent part:

*294 On motion and upon such terms as are just, the court may relieve a party or his legal representative from a final judgment, order, or proceeding for the following reasons:
* * * * * *
(4) The judgment is void....
The motion shall be made within a reasonable time, and for reasons (1), (2) and (3) not more than one year after the judgment, order or proceeding was entered or taken.
Plaintiff's initial argument is that defendant's motion for relief from the judgment of divorce from bed and board was not filed within a reasonable time, as required by the rule. Citing Nickels v. Nickels, 51 N.C.App. 690, 277 S.E.2d 577, disc. rev. denied, 303 N.C. 545, 281 S.E.2d 392 (1981) for the principle that a determination of what is a "reasonable time" must depend on the facts of each case, plaintiff contends that the fact that defendant did not move for relief until after his wife's death establishes, as a matter of law, that the motion was not timely. We disagree. Although Rule 60(b) contains the requirement that all motions made pursuant thereto be made "within a reasonable time," the requirement is not enforceable with respect to motions made pursuant to Rule 60(b)(4), because a void judgment is a legal nullity which may be attacked at any time. 11 Wright and Miller, Federal Practice and Procedure: Civil §§ 2862, 2866 (1973). If the judgment of divorce from bed and board at issue in the present case is void, then, as with any other void judgment, it establishes no legal rights and may be vacated without regard to time. Cunningham v. Brigman, 263 N.C. 208, 139 S.E.2d 353 (1964).
Moreover, contrary to the assertions of plaintiff, a proceeding to set aside an invalid divorce decree is not barred by the death of one of the spouses where property rights are involved. 1 Lee, North Carolina Family Law, § 94 (4th Ed.1979). Property rights are obviously involved in the present case since a decree of divorce from bed and board would, pursuant to G.S. 31A-1, cause a forfeiture of defendant's rights with respect to Shirley Allred Tucci's estate. For the preceding reasons, we conclude that Shirley Allred Tucci's death is not a bar to defendant's motion for relief from the judgment.
The principal question presented by this appeal is whether the 16 December 1985 judgment of divorce from bed and board is void or whether it is merely voidable. Our Supreme Court has described a void judgment as "one which has a mere semblance but is lacking in some of the essential elements which would authorize the court to proceed to judgment." Monroe v. Niven, 221 N.C. 362, 364, 20 S.E.2d 311, 312 (1942). "When a court has no authority to act its acts are void." Id.
"If a judgment is void, it must be from one or more of the following causes: 1. Want of jurisdiction over the subject matter; 2. Want of jurisdiction over the parties to the action, or some of them; or 3. Want of power to grant the relief contained in the judgment. In pronouncing judgments of the first and second classes, the court acts without jurisdiction, while in those of the third class, it acts in excess of jurisdiction." Freeman on Judgments (4 ed.), p. 176.
Ellis v. Ellis, 190 N.C. 418, 421, 130 S.E. 7, 9 (1925). On the other hand, the Supreme Court has said that a judgment is not void where the court which renders it "has authority to hear and determine the questions in dispute and control over the parties to the controversy...." Travis v. Johnston, 244 N.C. 713, 719-20, 95 S.E.2d 94, 99 (1956). In such case, the judgment is not void even though it may be contrary to law; it is voidable, but is binding on the parties until vacated or corrected in the proper manner. Worthington v. Wooten, 242 N.C. 88, 86 S.E.2d 767 (1955).
In North Carolina, jurisdiction over the subject matter of actions affecting the marriage relationship is authorized only by statute. Eudy v. Eudy, 288 N.C. 71, 215 S.E.2d 782 (1975); Schlagel v. Schlagel, 253 N.C. 787, 117 S.E.2d 790 (1961); Ellis, supra. Included within that grant of authority are the provisions of G.S. 50-10, which require that "[t]he material facts in *295 every complaint asking for a divorce ... shall be deemed to be denied by the defendant,... and no judgment shall be given in favor of the plaintiff in any such complaint until such facts have been found by a judge or jury." Those material facts include not only the jurisdictional facts required by G.S. 50-8 to be set forth in the complaint, but also facts constituting the grounds for the claim for relief. Schlagel, supra, Pruett v. Pruett, 247 N.C. 13, 100 S.E.2d 296 (1957); Saunderson v. Saunderson, 195 N.C. 169, 141 S.E. 572 (1928). The provisions of G.S. 50-10 are applicable to actions for divorce from bed and board, the grounds for which are specified by G.S. 50-7. Schlagel, supra.
In the present case, there is no question that the District Court had jurisdiction of the parties and of the subject matter involved in the action. However, the judgment of divorce from bed and board entered in this case contains absolutely no finding of the existence of any of the grounds for divorce from bed and board cognizable under G.S. 50-7. "Where jurisdiction is statutory and the Legislature requires the Court to exercise its jurisdiction in a certain manner, to follow a certain procedure, or otherwise subjects the Court to certain limitations, an act of the Court beyond these limits is in excess of its jurisdiction." Eudy, supra, 288 N.C. at 75, 215 S.E.2d at 785. Thus, upon the facts found by it, the District Court was without power or authority, and therefore without jurisdiction, to enter the judgment granting the parties a divorce from bed and board.
Ordinarily, where the court has jurisdiction of the parties and of the subject matter and enters a judgment which is not supported by findings of fact, the judgment is, at most, erroneous but not void and may be attacked only by an appeal. Ellis, supra; 8 N.C. Index 3d, Judgments, § 19. Where the court acts in excess of its authority, however, the result is different.
If the court was without authority, its judgment ... is void and of no effect. A lack of jurisdiction or power in the court entering a judgment always avoids the judgment, [citations omitted], and a void judgment may be attacked whenever and wherever it is asserted, without any special plea. [citations omitted]
Hanson v. Yandle, 235 N.C. 532, 535, 70 S.E.2d 565, 568 (1952). See Carpenter v. Carpenter, 244 N.C. 286, 93 S.E.2d 617 (1956); Ellis, supra; Saunderson, supra.
Plaintiff argues, however, that the judgment of divorce from bed and board is not void because it was entered by consent. A valid consent judgment may be set aside only with the consent of both parties, or upon proof that consent was not given or was obtained by fraud or mutual mistake. Holden v. Holden, 245 N.C. 1, 95 S.E.2d 118 (1956). A void judgment, however, binds no one and it is immaterial whether the judgment was or was not entered by consent. Hanson, supra. "[I]t is well settled that consent of the parties to an action does not confer jurisdiction upon a court to render a judgment which it would otherwise have no power or jurisdiction to render." Saunderson, supra, 195 N.C. at 172, 141 S.E. at 574.
Since material facts necessary to the granting of a divorce from bed and board were not found by the court, the court acted beyond its jurisdiction in entering the 16 December 1985 judgment. The judgment is therefore void. "To hold otherwise would be to sanction a divorce for cause not given by statute; and causes for divorce are statutory in North Carolina." Ellis, supra, 190 N.C. at 421, 130 S.E. at 9.
By her final argument, plaintiff asserts that even if the judgment of divorce from bed and board is void, defendant should be equitably estopped from questioning its validity because of his participation in its procurement. However, the question of estoppel does not arise upon the record before us. Estoppel must be affirmatively pleaded by the party relying upon it. Nationwide Mut. Ins. Co. v. Edwards, 67 N.C.App. 1, 312 S.E.2d 656 (1984). Plaintiff did not plead estoppel in either of her responses to defendant's motions and she has not included in the record on appeal any narration or transcription of the evidence below to establish that she presented evidence in support of that theory. *296 She may not, therefore, present the question on appeal. Gillis v. Whitley's Discount Auto Sales, Inc., 70 N.C.App. 270, 319 S.E.2d 661 (1984); Nationwide, supra.
The order granting defendant relief from the void judgment of divorce from bed and board must be affirmed.
Affirmed.
PARKER and COZORT, JJ., concur.
