In 1994, James Richards established an inter vivos trust and named his three minor children as the beneficiaries. Janet Richards, his wife at the time, was a trustee. In 2000, the parties divorced and, as a consequence, Ms. Richards was no longer trustee. The settlement agreement provided that Mr. Richards would pay $2,000 per month in child support based, in part, upon the existence of the trust and the parties’ “anticipat[ion] that the assets maintained and the income generated by the Trust are sufficient to cover any expenses of the children incurred above and beyond the child support....” The trust agreement itself provided, in relevant part, that the children would receive “all income, in annual or more frequent installments,” and that the trustee was authorized to encroach on the principal in such amounts as the trustee “may deem necessary to provide for the support and education” of the children.
Eventually, Mr. Richards remarried and his new wife, Julie Richards, became a trustee. After Mr. Richards’ remarriage, the former Mrs. Richards (hereinafter Appellant) filed suit against him andhis second wife (hereinafter Appellees). She asserted, onbehalf of herself and the children, various claims, including breach of the trust agreement, removal of the trustee and appointment of a receiver. After the trial court appointed a guardian ad litem to represent the *286interests of the children, who are the sole beneficiaries of the trust, Appellees moved for summary judgment against Appellant individually. Appellant, in turn, moved for partial summary judgment. The trial court granted Appellees’ motion, concluding that Appellant was not an “interested person” and, thus, lacked the requisite standing to maintain the action in her individual capacity. Appellant appeals from the order of the trial court.
1. “A trustee may be removed . . . [ujpon application to the superior court by any interested person showing good cause.” OCGA § 53-12-176 (a) (2). OCGA§ 53-12-2 (4) defines an “interested person” as
a trustee, beneficiary, or any other person having an interest in or claim against the trust. This meaning, as it relates to particular persons, may vary from time to time and must be determined according to the particular purposes of and matter involved in any proceeding.
Appellant is not a trustee or a beneficiary of the trust. Nevertheless, she urges that she is an “interested person” within the meaning of OCGA § 53-12-2 (4) because she has “an interest in or claim against the trust” resulting from her routine provision of funds for the support of the children. Appellant asserts that these payments represent “advances” by her of sums that the trust owes to the children, for which she is entitled to seek reimbursement from the trust.
The right to child support does not belong to Appellant. It belongs to the children. Stewart v. Stewart, 160 Ga. App. 463 (287 SE2d 378) (1981).
“When alimony is awarded for the support of minor children, the mother acquires no interest in the funds, and when they are paid to her she is a mere trustee charged with the duty of seeing that they are applied solely for the benefit of the children. . . .” [Cit.]
O’Neil v. Williams, 232 Ga. 170, 175 (II) (205 SE2d 226) (1974). The parties’ settlement agreement did express their expectation that the assets and income from the trust would be adequate to meet the children’s expenses to the extent that the $2,000 in monthly support otherwise owed by their father was not. However, the trust agreement neither guaranteed that the trust would contribute a specific amount towards the children’s support nor provided that the trust would assume the obligation to reimburse Appellant or any other third party for such sums as might be contributed to their welfare. It *287appears to be undisputed that the trust has complied fully with its obligation to pay to the children all income that it generates, and that the trustee has on occasion exercised her discretionary authority to encroach on the principal so as to provide for their support.
Whether the trust has been mismanaged to the financial detriment of the children in their capacity as its beneficiaries is a separate and distinct consideration from their right to support. The obligation to pay child support is one that is owed by Mr. Richards and Appellant, rather than by the trust. “ ‘The duty of parents to support their children is joint and several, and does not cease upon separation or divorce of the parents.’ [Cit.]” Diegel v. Diegel, 261 Ga. App. 660 (583 SE2d 520) (2003). Should Appellant contend that the contribution to the children’s welfare that is being made by the trust is less than she anticipated at the time of the divorce and that, as a result, the $2,000 per month she currently receives from Mr. Richards is inadequate child support, she has the option of bringing an upward modification action pursuant to OCGA § 19-6-19. She may also be entitled to be reimbursed by him for such past sums as she has expended in providing support for the children. In fact, Appellant has a contempt motion presently pending against Mr. Richards and, in the context of that proceeding, she can seek to recover any arrearage on his legal obligation to pay support. However, the remedies that she can pursue against Mr. Richards on behalf of the children are ultimately immaterial here, because this is not a domestic relations case. It is an action to remove a trustee and appoint a receiver, and the issue on appeal is whether, in addition to the children, Appellant has standing as an “interested person” under OCGA § 53-12-176 (a) (2) to pursue that relief.
Under Appellant’s interpretation, anyone could attain the status of an “interested person” and, consequently, obtain standing to maintain an action for removal of the trustee simply by expending sums for the support of a trust beneficiary. However, such a person does not have any individual interest in or claim to assert against the trust itself. Any possible interest in or claim against the trust or trustee would belong solely to the beneficiary for whose support the sums were expended. “[A] n ‘interested person’is more accurately defined as a person or entity with a specific financial stake in or a specific claim against the trust.” In the Matter of Horton, 668 NW2d 208, 213 (I) (Minn. Ct. App. 2003). See also Lemke v. Lemke, 929 SW2d 662, 664 (Tex. App. 1996). To the extent that any genuine issue of material fact may remain as to the allegations that the trustee should be removed and a receiver appointed because the trust agreement has been breached, that claim belongs to the children, as the beneficiaries, and not to Appellant in her individual capacity as their mother. See Davis v. Davis, 734 SW2d 707, 710 (Tex. App. 1987) (parent of children who *288are trust beneficiaries is not “interested person” as to trust). The guardian ad litem is representing the children’s interest in asserting that claim, so their interest is being represented by a legal representative authorized to act in their behalf. Accordingly, the trial court correctly granted summary judgment in favor of Appellees as to Appellant’s individual claim for removal of the trustee pursuant to OCGA § 53-12-176 (a)(2).
2. Because Appellant lacks standing as an “interested person,” summary judgment in favor of Appellees was also proper on her individual claim for appointment of a receiver pursuant to OCGA § 53-12-176 (b).
3. Remaining enumerations of error are moot.
Judgment affirmed.
All the Justices concur, except Hunstein, P. J., who concurs specially.