Cooley, J.
The bill in this case sets forth that complainant, on the twelfth day of June, 1866, purchased of one George Morton a certain lot in the city of Adrian for the sum of one thousand dollars, and received a deed of conveyance thereof which contained full covenants of title and against encumbrances; that complainant immediately took possession of the premises, and has been in the sole and exclusive possession thereof ever since; that at the time of.purchase Morton assured complainant there was no incumbrance upon the premises except a mortgage of eight hundred dollars to one Wisner, and produced a certificate from the *282Register of Deeds to that effect; that complainant after-wards learned that on or about the sixteenth day of April, 1866, said Morton with his wife had given a mortgage on said premises to the defendant, Myers, conditioned for the payment by Morton to defendant of eight hundred dollars and interest within one year; that the mortgage was. recorded April 17, 1866; that the sole consideration therefor was the signature or endorsement of a note made by Morton to W. H. Waldby & Co., April 16, 1866, by said Myers, as surety, guarantor or otherwise, which note was for eight hundred dollars and payable twenty days from date; that the mortgage was given for the sole purpose of indemnifying said Myers against any liability, cost, charge, loss or damage ho might sustain by reason of having signed said note with said Morton, and for no other consid-. eration or purpose; that said note was paid when it matured by said Morton, and that said mortgage was then and thereby fully paid and satisfied, and the said premises released from the lien thereof; that said- Morton at the request of complainant afterwards, on the twenty-fifth day of March, 1867, presented to defendant a discharge of said mortgage, and requested him to execute the same, offering to pay all costs, etc., but that defendant refused and ever since has refused to execute the same; that the mortgage constitutes a cloud upon complainant’s title and prevents his selling the premises as he desires to do; that Morton is irresponsible and resides out of the state, and that defendant claims the whole sum of eight hundred dollars and interest as still owing on his mortgage, and insists on being paid the same. And the bill prays that said mortgage to defendant may be decreed to be satisfied and discharged, and be delivered up to be canceled.
The answer of the defendant denies that the sole consideration for his mortgage was the signing by him of the *283Waldby note as security, endorser, guarantor or otherwise, and denies that any such note was ever signed or endorsed, or otherwise secured by him; but the defendant says he did, at about the time stated in the bill, at the request of Morton, give his own promissory note to said W. H. Waldby & Co., for the sum of eight' hundred dollars and interest, payable, according to his recollection and belief, in fifteen days from date; that previous to that time he had been accustomed to have dealings with Morton, and to loan him money and the use of his name, and advance money for his use; that when said mortgage was given, it was expressly agreed between said Morton and himself that it should be security for whatever amount was then or should thereafter be due or owing from time to time from said Morton to defendant; that at that time Morton was actually indebted to him in about the sum of three hundred dollars, independent of the Waldby note; that thereafter and before he had any notice or knowledge of the sale of the premises by Morton, he had advanced money to” him, relying upon the mortgage as far as it went; that the first intimation he had of the sale was seeing the premises advertised for sale by complainant;. that at that time, although Morton had taken up the Waldby note, he was indebted to defendant in the amount of near two thousand dollars, no part of which has since been paid; and he therefore denies that the mortgage is satisfied, and insists on retaining the same as a valid lien.
The answer having been put in issue by replication, the parties took evidence to prove their respective allegations. Both Morton and the defendant were examined at length, and in many particulars their evidence was directly in conflict. Defendant, however, admits in his testimony that the Waldby note was not given by himself alone, as stated in his answer, and was not payable in fifteen days, but was *284given by him with Morton, and payable in twenty days. The principal dispute between them was whether it was •agreed the mortgage should cover other indebtedness than the eight hundred dollar Waldby note. Morton expressly -denies that there was any such understanding, and defendant with equal positiveness affirms it.
Before determining the question of fact, however, it may be important to consider a question of law which is made on behalf of defendant, and which may dispose of the whole case if decided in his favor. The mortgage from Morton to defendant being given for the sum of eight hundred dollars, payable in one year, it is insisted that it is not competent to prove by parol that it was given to indemnify defendant for becoming security for Morton on the note to Waldby, as this would show that instead of being given for what appears on its face, it was for a totally different purpose; and thus the contract would be changed by parol from that stated in the writing to one entirely different. Several cases are cited in support of this position. Stevens v. Cooper, 1 Johns. Ch., 425" court="None" date_filed="1815-04-24" href="https://app.midpage.ai/document/stevens-v-cooper-5550102?utm_source=webapp" opinion_id="5550102">1 Johns. Ch., 425, was a case in which it was attempted to attach to a mortgage of several lots a parol contemporaneous agreement, that in case the mortgagor sold either of the lots, the mortgagee would release it from the mortgage on being paid' a certain proportionate sum of the amount secured. This was so plainly incompetent that no question would now be made regarding the correctness of the ruling which excluded the evidence of such an agreement. Barker v. Buel, 5 Cush., 519, was where it was sought to show that a mortgage given to secure a surety against the whole amount of a debt was designed to secure him against one-third only. The same may be said of this case as of the last, and with equal reason. Foy v. Blackstone, 31 Ill., 538" court="Ill." date_filed="1863-04-15" href="https://app.midpage.ai/document/foy-v-blackstone-6951016?utm_source=webapp" opinion_id="6951016">31 Ill., 538, holds that it is not competent for the maker of an *285absolute note to show, as against tlie payee or an endorsee, that by an oral contemporaneous agreement, it was only to be payable on a contingency. Columbia v. Amos, 5 Ind., 184" court="Ind." date_filed="1854-06-01" href="https://app.midpage.ai/document/columbia-v-amos-7032567?utm_source=webapp" opinion_id="7032567">5 Ind., 184, was in legal effect precisely like the case in Illinois. Cases of similar purport might be cited in great number, but it cannot be important, as no one at this day would venture to dispute the correctness of the principle declared. Jackson v. Cleveland, 15 Mich., 94" court="Mich." date_filed="1866-11-10" href="https://app.midpage.ai/document/jackson-v-cleveland-6633733?utm_source=webapp" opinion_id="6633733">15 Mich., 94, was a case where it was sought to establish a resulting trust in lands by parol. Adair v. Adair, 5 Mich., 204" court="Mich." date_filed="1858-06-08" href="https://app.midpage.ai/document/adair-v-adair-6631796?utm_source=webapp" opinion_id="6631796">5 Mich., 204, seems to be the case most relied upon by the defense. That was a bill to foreclose a. mortgage for a certain 'sum of money, payable in definite installments at fixed periods. The defendant offered to show that when the mortgage was given, nothing was due' to the mortgagee, and that the mortgage was made- not to secure the payment of any sum of money, but as security for the performance by defendant of a parol contract by which he agreed to pay certain debts of the mortgagee, and to work for and assist him in supporting himself and his wife, they being the defendant’s parents. The Court held such evidence incompetent, as it entirely changed the character and legal effect of the instrument.
Now we are unable to see that any of these cases has a bearing upon the case at bar. We do not understand that the case, made by complainant’s bill and supported by his proof, imports into the mortgage any parol agreement which alters its terms or legal effect. The mortgage was for eight hundred dollars, payable in one year. The complainant does not dispute that the defendant had a right to enforce the mortgage in exact accordance with its terms, unless it was paid and satisfied. His case is, that the mortgage was satisfied by- the payment of the Waldby debt; and the parol evidence he offers is not to contradict or vary the mortgage, but to identify the demand to which *286it referred. This we understand, to be always competent. We understand, also, that evidence of the satisfaction of a demand actually received, though in a manner varying from that agreed, is always competent, notwithstanding it may have been received in accordance with, some contemporaneous agreement.—Bradley v. Bentley, 8 Vt., 245, per collamer J.; Hagood v. Swords, 2 Bailey, 305; Crosman v. Fuller, 17 Pick., 174.
We think, therefore, that complainant had a right to give this evidence, and that if the case made by his bill was established by it, he was entitled to the decree prayed for.
Whether the account given by Morton shall be received in preference to that by defendant, must depend very much on whether it is the more reasonable in view of all the surrounding circumstances. We attach no importance to the effort to impeach Morton, as we think it not satisfactory, and we cannot believe defendant would have dealt so largely and so confidentially with Morton as the record shows he did, had he been a man whom he regarded as unworthy of belief. It must be borne in mind that the important facts asserted by complainant, namely, that the mortgage was designed to cover the liability of defendant on the Waldby note, and that that note was satisfied by Morton, are conceded; and starting with these as unquestionable, we cannot resist the impression that the probabilities are all against the statement made by the defendant. When a party asserts an understanding that a mortgage given to him for a certain definite sum, and confessedly designed to secure him against an obligation for precisely the 'same amount, incurred on the same day, was in truth given to secure a further indebtedness then existing,, as well as other debts- to be afterwards created, wc think— especially as it is not pretended that the debtor was disin*287dined to make the instrument express the real understanding, and the mortgagee, so far as we have any means of judging, might have made his own terms — that the probabilities which oppose this assertion ought to be overcome by a decided preponderance upon the oral evidence, before we should feel warranted in disregarding them. We do not find in this record any such preponderance o”f oral evidence as will justify the defendant in retaining the mortgage as an existing security, after an amount secured by it, equal to the sum expressed, has been paid off and satisfied by the mortgagor. We think, therefore, that the complainant was entitled to the decree prayed for.
The other Justices concurred.