At the September term, 1869, this plaintiff, having been the wife of this defendant twenty years and borne him four children, entered a libel therein alleging, substantially, that for *397several years prior thereto, the defendant was criminally intimate with another woman in the neighborhood, and had treated the li-belant in such a cruel, brutal, and outrageous manner, both by word and deed, that her life had thereby become utterly wretched and miserable ; that her only remedy was a divorce from the bonds of matrimony, which she prayed might be decreed to her together with a suitable sum by way of alimony or a specific sum in lieu thereof; and that the custody of her invalid minor son be decreed to her with a suitable allowance for bis support.
The libel was continued until the following December term, when the parties appeared by their respective attorneys, “ when,5' in the language of the record, “ this libel was by consent of parties submitted to the court without the intervention of the jury, who, after a full hearing of all matters and things concerning the same, adjudged that the allegations in said libel were satisfactorily proved, and thereupon ordered and decreed that the bonds of matrimony heretofore existing between said Emily P. Davis and Eber Davis be dissolved, and that the custody of the said minor child be with the mother.”
The record further discloses that “ alimony was agreed upon by the parties and paid to the libelant.”
In defence of this suit, the defendant offers to prove various facts; and, by the terms of the report, if any of the proof offered is admissible and would be a defence the action is to stand for trial, otherwise, the defendant to be defaulted.
We think it is all inadmissible.
The last “ point ” made by the defendant is, as expressed by his counsel, that “ the proof offered shows as clear a case of collusion as can well be imagined. . . By the collusion of the parties, the court was imposed upon and induced to decree a divorce in violation of R. S., c. 60, § 18! ” Bui this surprising defence cannot prevail. For, however dark a cloud such an unblushing assertion of his own active participation in an alleged fraud may cast upon the defendant’s own character, the impeachment is purely personal, while the absolute verity of the judgment thus im*398pugned remains unscathed. The parties to an -action cannot impeach the judgment rendered therein, in any collateral proceeding, on the ground that it was obtained through their fraud or collusion. It is their business to see that it is not so obtained. Even if, without any fault or neglect of one party, his adversary succeed by fraud in obtaining an unjust or unauthorized judgment, he must through some prescribed mode reverse or annul the judgment before he can claim to treat it as invalid. Granger v. Clarke, 22 Maine, 128 ; Freeman on Judgments, § 334, and cases cited.
All the offered testimony which conflicts with the allegations in the libel is clearly inadmissible. For these allegations having been judicially tried and determined to be satisfactorily proved, by a court having jurisdiction of the subject and of the parties, so long as that judgment remains unreversed, it is conclusive upon the parties in any proceeding before any judicial tribunal. Slade v. Slade, 58 Maine, 157; Walker v. Chase, 53 Maine, 258; Sturtevant v. Randall, 53 Maine, 149; Pratt v. Dow, 56 Maine, 81; Greene v. Greene, 2 Gray, 361. It would seem that no principle of law has been more frequently asserted than the foregoing.
It conclusively appearing by the judgment that a divorce was decreed to this plaintiff for tire fault of this defendant, for a cause other than that of impotence, she is entitled to dower in his real estate to be recovered and assigned to her as if he was dead (R. S., c. 60, § 7 ; Stilphen v. Houdlette, 60 Maine, 452) ; unless she has been barred of it by some “ pecuniary provision ” made for her benefit after marriage and in lieu of dower, R. S., c. 103, §§ 8, 9.
Was the written contract entered into by the parties, on Nov. 15, 1869, such a pecuniary provision as is contemplated by the statute ?
The instrument declares itself to be “articles of agreement” between the parties, an agreement “ upon the following division of the personal property now on the farm in Pittsfield occupied by them.” It contains a detailed enumeration of all the personal estate upon the farm, with a statement of the ownership of each. The only other stipulation therein relating to property or interest *399in property, is that the plaintiff is to have “ also the note of said Eber Davis for $46.48, given by him to his son, Horace G. Davis. Said Eber is also to pay her $1,800, which he owes said boy, on Jan. 1, 1870.” The consideration of this money transaction would seem to be the stipulation, on the part of the plaintiff, contained in the paragraph next the last, in the agreement “ to support said Horace G. Davis till twenty-one years old, and to protect said Eber Davis from all liabilities of every sort on account of said Horace,” etc.
There is not the remotest allusion, directly or indirectly, to dower or any interest whatever in real estate in the instrument. In the language of Kent, J. in Bubier v. Roberts, 49 Maine, 469, “ nothing is found in it, from which can be inferred that it was intended as a jointure or pecuniary provision in lieu of dower ; ” but on the contrary the money portion is expressly declared to be intended for another and different purpose, while the division of the personal property was evidently understood by the parties, judging from the docket entries, and by the court judging from them and the language of the judgment, as something in lieu of alimony. We do not think it can be considered a “ pecuniary provision ” as contemplated by the parties. Bubier v. Roberts, sup.; and cases there cited.
The offer to prove that at the same time $1,200 were given in notes subsequently paid, was intended by the parties to be a full discharge of all claims upon the defendant or his properly, is inadmissible as being in conflict with the agreement made in writing. And we know of no rule of law by which even an inchoate right of dower can be released or barred by parol. 1 Wash, on Real Prop. 201.
Befendant defaulted.
Appleton, C. J.; Cutting, DicKERSon, Danpoetii, and Pe-teks, JJ., concurred.