Article 812-4 of the French Civil Code
The mandate terminates by one of the following events: 1° The arrival of the stipulated term; 2° The renunciation of the mandatary; 3° The judicial revocation, at the request of an interested heir or his representative, in the event of the absence or disappearance of a serious and legitimate interest or the poor performance by the mandatary of his mission…; 4° The conclusion of a conventional mandate between the heirs…