Cal. Probate Code § 15305

(a) As used in this section, “support judgment” means a money judgment for support of the trust beneficiary’s spouse or former spouse or minor child. (b) If the beneficiary has the right under the trust to compel the trustee to pay income or principal or both to or for the benefit of the beneficiary, the court may, to the extent that the court determines it is equitable and reasonable under the circumstances of the particular case, order the trustee to satisfy all or part of the support judgment out of all or part of those payments as they become due and payable, presently or in the future. (c) Whether or not the beneficiary has the right under the trust to compel the trustee to pay income or principal or both to or for the benefit of the beneficiary, the court may, to the extent that the court determines it is equitable and reasonable under the circumstances of the particular case, order the trustee to satisfy all or part of the support judgment out of all or part of future payments that the trustee, pursuant to the exercise of the trustee’s discretion, determines to make to or for the benefit of the beneficiary. (d) This section applies to a support judgment notwithstanding any provision in the trust instrument.