We deal first with the cross-bill of exceptions. It is insisted that the answers as amended make no issuable defense on the question of payment, discharge and satisfaction. Such a defense may be sustained by proof of circumstances, provided they be of such a nature as to justify the inference sought to be drawn therefrom. While perhaps one single circumstance would not be sufficient, a chain of them, made up of connected links, might. On the authority of
Milledge
v.
Gardner,
33
Ga.
397, and
Norton
v.
Aiken,
134
Ga.
21 (
Another ground of attack was that the answers as amended, in so far as they related to the charge of undue influence, consisted of conclusions unsupported by allegations of sufficient facts. The decisions in
Field
v.
Brantley,
139
Ga.
437 (
The answers as amended were demurred to on the further ground that they presented no issuable defense upon the question of Mrs. Williams’ mental capacity to make a contract; the position being that, in the absence of an allegation that Mrs. Williams was without capacity to understand her acts, the allegation that she lacked sufficient mental capacity to make a valid contract or agreement is a mere conclusion. When it is sought to avoid a contract on grounds such as hereinbefore set forth, it is not necessary to allege an entire loss of capacity of understanding. The answer does allege that her mental and physical capacity were greatly impaired and weakened, and the complaint that the allegations with reference thereto are mere conclusions is without merit. Compare
Morris
v.
Mobley,
171
Ga. 224
(
The fourth ground of attack was that the answers as amended made no issuable defense upon the question of the invalidity of the paper, due to undue influence of Nisbet, the great disparity in mental capacity between Nisbet and Mrs. Williams, the confidential relation existing between them, and the gross inadequacy of consideration. The allegations of that part of the answers as amended set forth facts which if established would be sufficient to justify the avoidance of the instrument.
Maddox
v.
Simmons,
31
Ga.
512, 530;
Frizzell v. Reed,
77
Ga. 724; Stanley
v.
Stanley,
179
Ga.
135 (
While the evidence on the subject was conflicting, there was direct evidence from which the jury could have concluded that
*840
at the time of the execution of the paper Mrs. Williams’ mind was in a weakened condition, that she had every confidence in Nisbet, who was in charge of her business affairs, and that she largely relied on and trusted him. There was no direct evidence of undue influence. The defendants admitted a prima facie case, and assumed the burden. Did this require them to bring before the jury affirmative proof of undue influence? Or, if the jury were' satisfied from the testimony that the elements next above mentioned were present, coupled with the fact that the subject-matter of the paper was a large gratuity, did a presumption arise that there was undue influence, and in that case does the burden rest upon Mrs. Nisbet to bring forward proof to show that the instrument was free from improper influence? If it be the law that when such a relationship of dominance of one party exists, it raises a presumption of undue influence, and throws upon the party asserting rights under the instrument the burden of establishing the fairness of the transaction, such rule is not inapplicable here on account of the fact that the defendants admitted a prima facie case and assumed the burden. The burden assumed by the defendants was to produce such evidence as would prima facie establish their defense. When they do that, the burden shifts, and at that point it becomes the burden of their adversary; and this is true notwithstanding the admission in their pleadings of a prima facie case and their original assumption of the burden. If they have introduced evidence of circumstances which under the law causes a presumption of undue influence to arise, the burden of going forward with the evidence shifted to the plaintiff. For an admirable discussion as to the law of this burden, see
Hawkins
v.
Davie,
136
Ga. 550 (71
S. E. 873);
Strickland
v.
Davis,
184
Ga.
76, 80 (
The rule that a presumption of undue influence arises, so as to cast on the grantee the burden of showing its absence, in those cases where the parties sustained a confidential relationship, the grantor being of weak mentality, and the party reaping the benefit occupying a dominant position, has been often recognized by the courts and applied to various relationships, including that of confidential adviser. In Woodbury
v.
Woodbury,
A ease somewhat similar on its facts is Zimmerman
v.
Bitner,
In
Frizzell
v.
Reed,
77
Ga.
724, 729, we find the following: “The main ground is that the verdict is contrary to the law and evidence in the case; and this ground reaches the entire case made by the pleading and evidence. The evidence of ten witnesses for plaintiff was to the effect that she was insane; on the contrary, the testimony of forty-four witnesses was that she was not insane. But it is quite clear, from the testimony of all, that she was greatly afflicted in body and mind from disease; that she had little or no wiR power; and that she was greatly under the influence of defendant. So that, under these circumstances, where one possessed of this- power over another obtains a conveyance of the property of such person, it should be made to appear that the transaction was fair, honest, and free from fraud or all undue or improper influence of the master mind; such a transaction will be scrutinized closely by the courts; if there be found the slightest scintilla of fraud, the transaction will be set aside. These circumstances, when shown, without more, will of themselves show fraud which will authorize a court of equity to act and set the contract aside.”
Hubbard
v.
Rutherford,
148
Ga.
238 (
Our conclusion is that the request to charge, the refusal of which is complained of in ground 29 of the motion, stated a sound proposition of law, to wit: “If you find from the proof that Mrs. Cora IB. Williams at the time she executed the contract on which suit is brought was of weak mind, and that John Lord Nisbet, the beneficiary of the contract, stood in a confidential relation to her and possessed great influence over her, then the burden of proof would shift to the plaintiff in this ease to prove that the contract was not the result of the exercise of undue influence, and in the absence of such proof on the part of the plaintiff you would be authorized to find that the contract was not enforceable.” Was it applicable? It was, because it was in proof that Mrs. Williams’ mind was affected by her illness, and the narcotics which were administered to her, as a result of which her mind did not properly function, that she was very weak and “doping;” that she was not normal, was not herself; that she did not seem to know what was going on *845 around her; that her mental condition was subnormal; that she was mentally unbalanced. As to the relationship between Mrs. Williams and Nisbet, it was in proof that the relation was quite intimate; that she relied on him and trusted him to a large extent; that he was in charge of her affairs, and she relied on him absolutely in every instance. It was also in proof that he seemed to have charge of everything; that he was very affectionate towards her; that every time he got around her he would go up and kiss her on the forehead; that he was very attentive to her. A witness testified that “I have seen her sign papers that he brought in to her to sign. He would just ask her to sign the papers, and she would sign them. The papers were not read to her.” The evidence as to her mental condition was in conflict, and of course we do not mean to rule that what is summarized next above is the truth of the ease, for that is the province of the jury, not ours;, but when a party makes a timely request to charge based on a theory that is supported by the evidence, it may not be refused merely because the evidence is in conflict. It should be further said in this connection that the instrument under attack was a gratuity, the principal of which amounts to more than two hundred thousand dollars. Grounds 9 and 20 of the motion are meritorious, because the court charged the jury in effect that the burden of proof would shift to the plaintiff if they should find from the proof that Nisbet exercised great influence over her “about this matter,” the court thereby eliminating from the consideration of the jury the proposition that without proof that he exercised influence over her “about this matter,” such might be presumed from other facts. For a like reason grounds 8, 14, 15, 16, 25, 26, 28, 29, 33, and 37 of the motion were meritorious.
With reference to ground 4, which is set forth in the statement preceding this opinion: One of the defenses pleaded was that the obligation sued upon had been paid, satisfied, and discharged. Great delay in asserting a claim is a circumstance to be considered by the jury in support of a defense that such claim has been discharged, although the claim may be asserted within the period of the statute of limitations. That this circumstance is a relevant matter to be considered by the jury in support of such a defense, see
Milledge
v.
Gardner, Norton
v.
Aiken, Hurt
v.
Stewart, Calhoun v
.
Williams, George
v.
McCurdy, Tumlin
v.
Guest, Fletcher
*846
v.
Young,
supra;
Conway
v.
Caswell,
121
Ga.
254, 259 (
This statement of the court applies with force to the instant ease, inasmuch as the court below abstracted certain elements of
*847
the testimony from the whole, and charged upon the weight and effect of such particular elements. These elements, in the words of the court quoted above, were “important links in the chain of testimony produced by the defendants to sustain their answer.” To single these elements out, as the court did, and express an opinion upon their weight, was, we think, prejudicial error. In
McCrea
v.
Georgia Power Co.,
179
Ga.
1 (7) (
*848
In several grounds of the motion complaint is made that the court charged the jury that “The influence -which will invalidate a contract is such fraudulent practices upon the maker’s fears, affections, and sympathies as entirely substitutes the will of another for the wishes of the maker of the instrument.” It has been held that fraud and undue influence are not equivalent terms; undue influence may be a species of fraud, or it may exist without any positive fraud.
DeNief
v.
Howell,
138
Ga.
248, 252 (
There is an exception to the following charge of the court: “Now gentlemen, if you should find for the plaintiff, and which could only be done if you find against both of the contentions of the defendants, the form of your verdict would be: We, the jury, find for the plaintiff, Mrs. Idella Holloway Nisbet in the sum of $210,000, together with seven per cent, interest upon the several installments from the respective maturity dates of each,
to be recovered cmd paid only out of the trust fundis.
If your verdict should be for the plaintiff, that would be the form.” The contention is “that the defendants were not liable for interest at all; further, that if liability for any amount in the nature of interest
*849
should exist, it would not exist for the period from the defendants’ receipt of the money from Nisbet, as executor, up until the time of the plaintiff’s demand upon them; further, that if they are liable for anything beyond the principal, such liability would in no event be, as a matter of law, for a fixed seven per cent, interest, but only for the amount actually earned by the portion of the funds and property to which the plaintiff was entitled.” If the charge excepted to authorized an unpaid creditor, in order to satisfy his debt, to recover
from the residuary legatee
statutory interest.
on the funds
of the estate paid the legatee by the executor from the time they were received, it would no doubt be erroneous. A donee of trust funds, without notice of the trust or of a valid claim thereon, is not generally liable for interest thereon except as to such as might have been actually received, until he receives notice and demand for restitution or payment. The authorities cited by plaintiffs in error seem to hold this and nothing more.
2
Scott on Trusts 1614, 1617; 4 Bogert on Trusts, 2525, 2530; 2 Restatement of the Law of Trusts, 890, § 292; Restatement of the Law of Restitution, 618, 621, 622. This is true, not because interest is “of purely statutory origin and not the creature of the common law” and “should not be awarded except in such cases as fall within the terms of the statute unless it has been contracted for either expressly or impliedly”
(Best
v.
Maddox,
185
Ga.
78, 82,
So the charge of the court was merely to the effect that the sums agreed to be paid under the written instrument executed by Mrs. Williams drew interest from their respective due dates, and that as to such amounts the plaintiff was entitled to subject the funds of the estate (not themselves enhanced by interest). There was no question made by the defendants in the record that the amount actually received by them was not ample to cover these amounts. It in fact appears that they received from the executor an amount greatly in excess thereof. Nor were there any equities set up by them as to why less than the amount received sDould be available for application to a debt of an unpaid creditor of the testatrix. As has already been made to appear, the plaintiff’s claim was based on a written instrument for the payment of definite sums of money in installments, and clearly enough they were liquidated demands which, as against Mrs. Williams and her estate, would draw interest. Code, § 57-110. Cf.
Clark
v.
Georgia R. Bank &c. Co.,
182
Ga.
472 (
What has been said in this division of the opinion was prepared through collaboration of the other members of the court. Without committing himself to all that is contained therein, the writer, though entertaining grave doubts as to the conclusion reached as to this ground of the motion, concurs in the ruling that under the facts of this case the charge complained of was not erroneous.
The remaining grounds of the motion are dealt with in the headnotes.
Judgment reversed on the main bill of exceptions; affirmed on the cross-bill.
