*196 Opinion
Facts
On June 11, 1969, after 15 years of marriage, respondent husband filed an action for divorce against his wife, the appellant. On June 18, 1969, the parties entered into a marital settlement agreement. The essential provisions of the agreement were that respondent husband would receive custody of the minor children and receive as his share of the marital property a 1968 automobile, $1,000 in cash, 30 shares of Litton Corporation common stock and certain household furniture; appellant wife was to receive a 1968 automobile, approximately $4,000 in cash from the sale of their residence and certain household furniture. The husband agreed to pay all obligations incurred by the parties prior to the date of separation including payments on the wife’s automobile.
A support clause provided that the husband pay the wife “for her support and maintenance, and as and for alimony” $350 per month for a period of three years and $250 per month for a period of two years. Payments were to begin in July 1969 and continue through June 1974. No provision was made for termination of support payments in the event of the death or remarriage of the parties.
The agreement expressly provided that it was the purpose of the parties “to make an integrated agreement to effect a final and complete settlement of [their] rights with reference to each other, including [their] respective property rights and to provide for the future support of wife and the minor children.” The parties further provided: “[E]xcept as otherwise provided in this agreement, each of us releases the other from any and all liabilities, debts and obligations of every kind and character, that have been or will be incurred, and from any and all claims and demands, including all claims that either of us may have upon the other for support and maintenance as wife or as husband, it. being understood that by this present agreement, we intend to settle all aspects of our marital rights.” The last paragraph of the agreement stated that “this agreement is entire. We may not alter, amend or modify it except by an instrument in writing executed by both of us, and includes all representations of every kind and nature made by each of us to the other. This agreement shall be binding upon and enure to the benefit of both of us and of our heirs, executors, administrators, successors and assigns.” The agreement was apparently prepared by the husband’s attorney.
*197 On July 23, 1969, respondent husband obtained an interlocutory judgment of divorce in a default proceeding. The interlocutory judgment approved the property settlement agreement and ordered “all terms and conditions” carried into effect by the parties. However, unlike the agreement, the interlocutory decree included a provision that the support obligation should continue through June 1974 “unless terminated at an earlier time by death or remarriage of [the wife].” Copies of the interlocutory decree were mailed by the husband’s attorney to the wife’s attorney.
On January 15, 1970, a final judgment dissolving the marriage was entered. On May 9, 1970, the wife remarried.
On April 5, 1971, the wife filed a notice of motion for order nunc pro tunc to conform the interlocutory and final decrees to the terms of the property settlement agreement on the basis of extrinsic fraud or mistake. The wife’s declaration in support of her motion states that she did not appear at the default divorce proceeding because she had reached an understanding with the husband that the property settlement agreement would be presented to the court and incorporated into the interlocutory decree with no changes; that based on that understanding she allowed the hearing to proceed without being present or represented by counsel and that if she had known the terms of the property settlement agreement would be altered she would have been present in court to protect her interests. She further states that she did not know or realize that there was a difference between the property settlement agreement and the interlocutory decree in respect to the payment due her until approximately November of 1970 when she requested her new attorney to attempt collection of the amounts past due under the agreement.
A declaration of her former attorney states that about August 11, 1969, he received from husband’s attorney two copies of the interlocutory decree and that he assumed the decree conformed to the marital agreement with which he was only “vaguely familiar”; he acknowledges that a copy of the decree was forwarded to wife. 1
On May 1, 1972, the trial court entered an order denying wife’s motion to conform the judgments to the property settlement agreement. The wife has appealed from this order under Code of Civil Procedure section 904.1, subdivision (b) as an order made after judgment. (See
Rooney
v.
Vermont
*198
Investment Corp.,
Discussion
Property and support provisions of an integrated marital settlement agreement which have been incorporated into a decree of divorce may properly be set aside or modified after the time for appeal or other direct attack has expired upon a showing of extrinsic fraud or mistake relating to those provisions.
(Lopez
v.
Lopez,
Extrinsic fraud usually arises where a party is denied a fair adversary hearing because he or she was in some way fraudulently prevented from presenting a claim or defense. Where the ground of relief is not so much the fraud or misconduct of the defendant as it is the
excusable neglect
of the party to appear and make the proceeding a fair adversary hearing, the basis for equitable relief is extrinsic mistake.
(Kulchar
v.
Kulchar,
It has also been held that where a marital settlement agreement is entire or “integrated,” the court ordinarily must approve or disapprove the entire agreement. (See
Wright
v.
Wright,
In
Plumer
v.
Plumer,
Whether the parties intended an integrated bargain must be ascertained from the terms of the agreement and any extrinsic evidence received in aid of its interpretation. In the absence of conflicting extrinsic evidence as to the meaning of the agreement, the question of whether the parties intended an integrated bargain is one of law and the trial court’s interpretation is not binding on the appellate court. (See
Messenger
v.
Messenger,
Because the instant agreement expressly states that its purpose is to make an integrated agreement to effect a final and complete settlement of property and support rights, that except as therein provided each party releases the other from all claims for support and maintenance, that the parties intend to settle all aspects of their marital rights and waive their right to modify the agreement, and because it is. expressly made binding on the heirs and representatives of the parties, we conclude that the bargain for support and property division was inseparable and integrated. For this reason the trial court was not free to add a qualifying term to the provisions for support.
The husband contends that even if the provision for early termination of payments had not been added to the interlocutory decree his obligation to make the support payments automatically terminated by operation of law upon wife’s remarriage. At the time the agreement was executed, Civil Code section 139 provided in part: “Except as otherwise agreed by the parties in writing, the obligation of any party in any decree, judgment or order for the support and maintenance of the other party shall terminate upon the death of the obligor or upon the remarriage of the other party.” (Italics added. Effective Jan. 1, 1970, section 139 was repealed and reenacted as Civ. Code, § 4801, subd. (b).)
In support of his argument, husband cites
Hilton
v.
McNitt,
The majority in Hilton further held that the statutory provisions for early termination of support upon the death of the obligor or remarriage of the other party were applicable whether or not the property settlement agreement was integrated. Three justices dissented, holding that while the statute applied to integrated as well as severable support agreements, by providing that the payments would continue until July 1,1956, the parties had “otherwise agreed.” 3
In
Rheuban
v.
Rheuban,
“The agreement now before us says, as clearly as words could say, that it was the definite intention of the parties that the payments provided for by paragraph II should continue for the full 128 months agreed upon, no matter what happened. Unless we are to hold that the application of section 139 can be obviated only by an agreement which not only is in writing but which uses a magical formula that includes the exact words ‘remarriage’ and ‘death,’ the language used by the Rheubans is sufficient to show that (in the words of the opening clause of the statutory paragraph relied on) they had ‘otherwise agreed.’ We can see no reason why, if the intent of the parties is clear, any particular words should be required to accomplish their purpose; the agreement here complied with the statutory requirement.”.(
Rheuban is a logical and sound extension of the holding in Hilton. It explains that where there is evidence in addition to the promise to pay for a specified period from which it reasonably may be concluded that the parties intended the payments to continue after remarriage of the wife, Hilton does not require that the payments terminate simply because the parties literally do not provide otherwise. By ascertaining from the agreement as a whole the parties’ true intention as to whether the support payments should terminate on the wife’s remarriage, the court effected a just result in keeping with the legislative policy expressed in Civil Code section 139.
Like
Rheuban,
the agreement in the instant case goes farther than the
Hilton
agreement in that the parties expressly waived any rights to modify the agreement except by an instrument in writing and the agreement was made binding on the heirs and representatives. The parties and their attorneys are presumed to know the law applicable to property settlement agreements at the time the agreement is executed and, in the absence of evidence to the contrary, should be presumed to understand the consequences of the terminology used. (See
Hilton
v.
McNitt, supra,
The husband’s contention that the wife is barred from seeking modification of the divorce judgments by the doctrine of laches is without merit. The defense of laches requires unreasonable delay plus either acquiescence in the act about which the plaintiff complains or prejudice to the defendant resulting from the delay.
(Conti
v.
Board of Civil Service Commissioners,
The husband asserts that he was prejudiced by the delay because he moved to Connecticut after the divorce proceeding and was not available to personally participate in subsequent proceedings. However, his attorney appeared on his behalf and opposed wife’s motion and the husband does not explain what he might have added had he been personally present. To show prejudice for the purpose of laches the party asserting the defense must show he did or omitted to do something which detrimentally altered his position
with respect to the claim or right asserted. (South
v.
Wishard,
The order denying the wife’s motion to conform the interlocutory and final judgments of divorce to the terms of the property settlement agreement is reversed. The matter is remanded to the trial court with directions *204 to amend the interlocutory and final judgments by deleting from the support provisions in favor of the wife, the words “unless terminated at an earlier time by death or remarriage of the defendant.”
Brown (G. A.), P. J., and Gargano, J., concurred.
Notes
He also states that at the time he was not the attorney of record for wife; however, he had represented her in a divorce action she had filed against husband about the same time husband’s action was filed and apparently had advised wife in connection with the marital agreement here involved.
The wife’s affidavit in substance merely states that she and her husband had agreed that the settlement embodied in the agreement would be presented to the court for approval “with no changes.” Husband did not file a declaration; however, his attorney *200 filed a declaration which, insofar as pertinent to this appeal, merely states that at the time the interlocutory judgment was entered, husband and his attorney intended the “purpose” of the support provision was to provide for wife’s needs for a fixed period of time or until she should die or remarry. Neither declaration purports to express the intention or understanding of the parties at the time of contracting, nor do they contain evidence of the conversations between the parties, nor any other circumstance to aid in interpreting the language of the agreement.
It is interesting to note that after the decision in
Hilton,
further proceedings were held by the trial court to resolve questions relating to a latent ambiguity in the agreement which were not before the Supreme Court. When the case was again appealed in
Hilton
v.
McNitt,
This finding is apparently based on the language in the agreement that it is to be binding on the heirs and personal representatives of both parties. A similar provision is included in the instant agreement.
It does not appear that the wife was put on notice, of the remarriage termination provision by the husband’s cessation of payments after she remarried. By the time the divorce was final in January 1970 (and four months before the wife remarried) husband was approximately $1,000 behind in support payments.
