This is an action to determine adverse claims to a tract of land in Whatcom county, Washington, the action being brought by the respondent to quiet title to the same. Upon the trial of the case, the court found in favor of the plaintiff, judgment was entered in accordance with the prayer of the complaint, and appeal followed.
Both parties claim under one Emil Ereiner, who died intestate in Snohomish county, Washington. The premises in controversy were concededly acquired by Emil Freiner under the homestead laws of the United States, patent therefor being issued to him September 28, 1898, and duly re*328corded. On November 4, 1903, Freiner executed and delivered to his wife, Frances, a deed conveying the premises in controversy, which deed was duly recorded. After Freiner’s death a petition for the probate of his estate was filed in the superior court of Snohomish county, and letters of administration were issued to Frances by said court. An inventory was made by the administratrix, and filed in the superior court of Snohomish county August 9, 1904. On September 28, 1904, the administratrix filed in such superior coui’t a petition to sell real estate. The inventory included the lands in controversy. There was some question about the description of the land, which was afterwards cured, and it is now a conceded fact that all the lands in controversy were included in the order of sale, and were intended to have been included in the inventory and petition.
On the 1st day of October, 1904, the superior court issued its order to show cause why an order should not be granted to sell certain real estate at private sale, and on the 19th of October an order was made directing'the giving of notice to creditors. Notice of sale of real estate was given, and the same was published. ’ Thereafter the administratrix made her report of sale to the court, and the court fixed a date for hearing. Notice was given of such return day. Thereafter, on the 24th day of November, 1905, an order was made confirming the sale of such real estate, being the real estate in controversy here, to one Daniel Neeson, who paid to the administratrix the sum of $650 for said land, and the administratrix executed and delivered certain deeds conveying the said land in statutory form.
The court found the facts which we have briefly recited; that the administratrix had petitioned and prayed for authority to sell the real estate in controversy; that it was sold and confirmed, and that the deeds were made to Neeson as aforesaid; also found that the defendant O. B. Whitney, subsequent to the conveyances aforesaid, obtained, for a *329consideration of five dollars, a quitclaim deed from the said Frances Freiner to the land in controversy, which said quitclaim deed was duly filed in the auditor’s office of Whatcom county; that at and prior to the taking of the quitclaim deed, the defendant Whitney knew of the execution and delivery by said administratrix of the deeds aforesaid to the said Neeson, and of the subsequent conveyance to the Keith Investment Company by said Neeson. It appears in the proceedings that the Keith Investment Company sold the said land to the respondent. The court found that the said Frances Freiner never took under the deed from Emil Freiner, and never made any claim individually to said real estate, and that, prior to the sale thereof by her as administratrix, she had a conversation with Daniel Neeson, the purchaser at such sale, in which she represented to said Neeson that she was selling the whole of such real estate as the property of the estate of Emil Freiner, deceased.
Many exceptions are taken to the findings of the court by counsel for appellants, but there is only one pertinent proposition in this case, and that is whether the administratrix is estopped from raising the question of the validity of the sale to Neeson. It must be conceded that Whitney can take no better title to the land than his grantor, Mrs. Frances Freiner, had. The findings of the court, we think, are substantiated by the record in the case, most of which is documentary. It is the contention of the appellants that the status of this property as community property continued until, by reason of some act of the parties or by reason of the law, such status changed, and that such change occurred upon the execution and delivery of the deed from Emil Freiner to Frances Freiner; that the court had no jurisdiction to order the sale of the property which by public record appeared to be the property of Frances Freiner; that it is a fact which exists that gives the court jurisdiction to sell real estate, and not the representations made in the declaration of the administratrix through the inventory filed. *330Many cases are cited by counsel for appellants to the effect that an administrator who sells his own property as property of the decedent is not estopped from claiming title to his own property notwithstanding such sale, and no doubt there are many authorities to this effect as a general proposition.
The first case which is strongly relied upon by the appellants is Anthony v. Chapman, 65 Cal. 73, 2 Pac. 889. In that case the general doctrine contended for was no doubt announced in the syllabus, viz., that an executor who represents in his petition, for letters testamentary that certain property belonged to the estate of the decedent, and files an inventory including such property, is not thereafter es-topped from claiming the property as his own. But upon an examination of the case itself, the syllabus may be considered as too broad. In that case the property did not go to sale. The plaintiff claimed under a conveyance from one Bird to Mary A. Smith. The defendants claimed that this conveyance was made to Mary A, Smith in trust for one J. P. Smith who, they claimed, paid the consideration therefor and from whom they derived title. Mary A. Smith left a will appointing J. P. Smith her executor. He applied for letters testamentary and, in his petition, represented that the property in controversy was a portion of the estate of the testatrix, and also included it in the inventory of the estate filed by him. J. P.- Smith died pending the administration, and the plaintiff was appointed administratrix with the will annexed, and hence the contest over that particular portion of the property. The court decided the case somewhat upon the testimony, saying that there was no direct evidence that Mary A. Smith did not pay for the property, and that there was a conflict of evidence as to who actually paid the purchase money. The alleged trustee and beneficiary both died before the commencement of the action. All that the court said on this proposition is the following:
“The appellant contends that [plaintiff] by representing *331in his petition for letters testamentary of the will of Mary A. Smith, that said property belonged to her estate, and filing an inventory of her estate which included said property, J. P. Smith was estopped from afterwards claiming that it was his own. In Carter v. McManus, 15 La. Ann. 676, the court says, ‘that admissions made by an executor or administrator in the course óf judicial proceedings are made for the benefit of the estate represented by him, and do not conclude his individual right by way of estoppel.’ Another case very much in point is Werkheiser v. Werkheiser, 3 Rawle 326. The facts in this case fall short of what is required to constitute an estoppel.”
So that it will be seen that that case was decided on the authority of Carter v. McManus, 15 La. Ann. 676, and of Werkheiser v. Werkheiser, 3 Rawle 326. An examination of those cases elicits the fact that they fall far short of the matters which are claimed to be matter of estoppel in this case. In Carter v. McManus all that was decided was that an .application, made by the executor named in the will to have the will probated, was not a judicial admission which would estop the executor from claiming as his own property disposed of in the will. In Werkheiser v. Werkheiser it was decided that the presentation of a petition to the Orphans’ court, setting forth that the petitioner’s father died seized of the premises therein described, leaving a widow and seven children, and praying the court to award an inquest, to make partition, etc., does not estop the petitioner from after-wards maintaining an ejectment for the same premises, and proving that they were the estate of his mother who was his father’s first wife, and descended to him as her heir, to the exclusion of his brothers and sisters, the children of a second wife. Under such circumstances the court said that such allegations would in most cases operate very slightly, if at all, against him; that nothing more was done in the case; that the plaintiff committed an error in presenting the petition and probably, upon discovering his mistake, relinquished the proceedings under it and adopted an action of *332ejectment. In none of these cases was the land sold and other parties misled to their injury.
The American Law of Administration by Woerner, § 480, cited by the appellants, only announces the undoubted rule that, so far as covenants and words of warranty in an administrator’s deed are fairly referable to their official capacity or duty, their effect is limited to the estate alone, and they in no manner affect the personal right or liability of the administrator; citing the instance that, where a widow administratrix in executing specific articles of sale by her deceased husband under order of the Orphans’ court, conveyed all her husband’s estate and her own, in law and equity she was held not barred of her dower which was the only interest she had in the land. Many of these cases are dower cases, where the wife’s right is more or less a technical right, and it would be reasonable to suppose that she might not think when she was selling the estate of the husband that there would be any claim that her dower would be conveyed.
A very positive, and it seems to us somewhat dogmatic, statement is made in Baker v. Brickell, 87 Cal. 329, 25 Pac. 489, 1067, a case cited by appellants, where the court, noticing this phase of the case, says:
“The other circumstances, viz., the facts that Maria Baker qualified and was appointed administratrix of John H. Baker, and put the land in suit on the inventory returned by her to the probate court as assets of her intestate’s estate in the administration of the estate, are entirely immaterial. We are aware of no law by which a person appointed administrator loses his land by so acting. There is no estoppel on Maria Baker to claim her own property under such circumstances. She no doubt acted in this matter through ignorance of her rights, or, if advised at all, from having been improperly counseled.”
This, as a general proposition, we think is probably too sweeping a statement of law, the question of estoppel being largely a question of fact. We think it unnecessary to re*333view cases cited by counsel for respondent. They announce squarely the other doctrine, viz., that under such circumstances the administrator, or administratrix as the case may be, is estopped.
But these cases must all be considered with reference to the particular circumstances involved in the case. It makes no difference in this particular case whether the court acted with jurisdiction to sell the property. The deed of the administrator conveyed the property in terms to the purchaser, and in terms it was a deed, and the only question is whether, under the circumstances as shown by the record, the administratrix is estopped from questioning its validity and asserting her own title. Estoppel is an equitable proceeding, or speaking more accurately perhaps, it is the equitable result of a wrongful proceeding or act, a reliance upon which would, in the absence of an estoppel, work an injustice to an innocent person. At the common law estoppel was founded on deeds and records of courts, but estoppel in equity is estoppel in pais. The principle now applies because it has been found that the common law rule was too narrow and inadequate for the attainment of justice under the multiplied transactions of modern times, and hence the equitable estoppel of the present day. The well-understood idea of equitable estoppel is that, where a person wrongfully or negligently by his acts or representations causes another who has a right to rely upon such acts or representations to change his condition for the worse, the party making such representations shall not be allowed to plead their falsity for his own advantage.
This is an extreme case, where there can be no question that the doctrine of equitable estoppel should apply. We would not lay down the harsh rule, such as seems to have been laid down in some cases cited by the respondent, that under all circumstances the representations made by an administratrix, through inventory filed, would estop her from questioning the conveyance of her own interest; for there *334might be an honest mistake which in good conscience she ought to be allowed to show or explain away. But in this case the representation was not only made in the declaration of what property belonged to the estate, but by petition to sell, by solemn deed of conveyance, by holding out to the world, and especially to the respondent, that the property which the administratrix now claims was the property of the estate, whereby she obtained, presumably as an heir of Fminer, an interest in the money obtained for the land sold. But the record also shows that the creditors of this estate had raised some question as to the validity of the sale to Mrs. Freiner, and that it was agreed between the administratrix, through her attorney, and the creditors, through their attorney, that this particular piece of land should be sold as property of the estate. It also shows that personally she represented to the purchaser that he was to receive title to all of the estate described in the inventory, if he would bid upon the same. Under such circumstances it would be an outrage upon justice to permit the administratrix or her grantee to question the validity of the deed conveying the property in controversy.
The judgment of the court is affirmed.
RunitiN, C. J., Mount, Caow, and Pakkeii, JJ., concur.