The plaintiff, Frances May Bua Lococo, filed suit against her former husband, Dr. Santo J. Lococo, alleging a breach of his fiduciary duty to maintain and preserve certain community properties under his exclusive management and control during the period of time between the termination of the community and the actual partition of the former community. The plaintiff was awarded the properties in question by virtue of a judgment partitioning the community property. The defendant filed exceptions of res judicata and prescription, which were sustained by the trial court. The plaintiff appeals the judgment dismissing her suit on the pleas of prescription and res judicata. The issues on appeal are 1) whether the prescriptive period of C.C. Art. 2369 is applicable to bar plaintiff’s suit, and 2) whether this suit has the same object as the partition proceeding, thereby rendering it res judicata.
The plaintiff and the defendant were separated after many years of marriage on August 8, 1978, at which time the plaintiff filed a petition for separation. The defendant managed the considerable community assets subsequent to that time and up until the judicial partition of the community as*895sets. The judgment of separation was rendered on March 24, 1980, thereby terminating the community retroactive to the date of the filing of the original petition. C.C. Art. 155. The judgment partitioning the assets of the former community was rendered on November 4, 1982 after a trial on the merits. The plaintiff now alleges that after accepting her part of the community assets, she discovered that certain properties were in a state of disrepair and taxes were left unpaid during the years that the defendant managed the property.
We do not believe that C.C. Art. 2369 has any application in this case, nor after much research into the legislative history of Act. 790 of 1979 have we been able to determine exactly in what situation C.C. Art. 2369 applies. Once the community of acquets and gains was terminated by, in this case, judgment of separation from bed and board, the defendant and plaintiff became co-owners in indivisión of those assets formerly belonging to the community. Either party then had an absolute right to demand a partition of the property. C.C. Arts. 1289 and 1308. The action of partition is not subject to an exception of libera-tive prescription. See Rasbury v. Baudier, 370 So.2d 659 (La.App. 4th Cir.1979) and Nix v. Nix, 385 So.2d 503 (La.App. 1st Cir.1980). If C.C. Art. 2369 is to have any application to this case, it must be presumed that its authors intended for a spouse having control of community property at the termination of a community property regime to occupy the position of a co-owner under the general law of property. Thus, a spouse ought to be accountable for any loss or deterioration of the things under his or her control attributed to his or her fault and for the fruits produced by the things since the termination of the community property regime. LSA-C.C. 2369 Comment (e).
As a co-owner of the property, if the defendant undertook the task of managing the “affairs of others” (the one-half interest in the properties belonging to the plaintiff as co-owner) when he managed the properties from the time of separation until the partition with the tacit approval of the plaintiff, the defendant would owe a fiduciary obligation to the plaintiff based upon the principle of negotiorum gestio. LSA-C.C. 2295. The duty owed by a negotio-rum gestor is that a prudent administrator. LSA-C.C. 2298. Any serious deterioration of the properties under his management, absent a sufficient explanation of the causation thereof, indicates a breach of that fiduciary duty. Thus, the defendant would have to account to and compensate the plaintiff for losses or damages incurred due to his mismanagement or negligence. Beavers v. Stephens, 341 So.2d 1278 (La.App. 3rd Cir.1977); Smith v. Succession of Smith, 298 So.2d 146 (La.App. 1st Cir.1974).
A suit for breach of fiduciary duty is a personal action subject to liberative prescription of ten years. LSA-C.C. 3499. Therefore, plaintiff has brought her suit well within the ten year prescriptive period. The exception of prescription should have been denied by the trial court.
The next question is then whether the relief prayed for by the plaintiff is an issue that was dealt with in the judicial partition conducted in accordance with La.R.S. 9:2801. We think not.
The exception of res judicata is applicable only when there is (1) an identity of the parties, (2) an identity of the cause of action, and (3) an identity of the thing demanded. LSA-C.C. 2286. Slocum v. Daigre, 424 So.2d 1074 (La.App. 3rd Cir.1982); Barnette v. Develle, 289 So.2d 129 (La.1974); Welch v. Crown Zellerbach Corp., 359 So.2d 154 (La.1978); Mitchell v. Bertolla, 340 So.2d 287 (La.1976); Sewell v. Argonaut Southwest Insurance Co., 362 So.2d 758 (La.1978).
It can be argued that there is an identity of the thing demanded in that in the prior case the property was valued and then partitioned and now plaintiff seems to want to have the value changed. Judgment was rendered whereby the property was divided between the plaintiff and the defendant with certain values put on the *896property which plaintiff accepted. However, the cause was not the same in the prior suit as in the present suit. In the present case, the plaintiff is contending that the negligence or mismanagement of the properties from the time of separation until the partition by the defendant caused the loss. There was no such issue presented in the first case.
We find after careful review of the record there is an identity of parties but there is no identity of cause or of the thing demanded. Therefore, the exception of res judicata should have been overruled.
Accordingly, for the foregoing reasons, the judgment on the exceptions of prescription and res judicata is reversed and the case remanded for a trial on the merits. Costs are to be borne by defendant/appel-lee.
REVERSED AND REMANDED.
REDMANN, C.J., concurs.