This is an appeal from a judgment of the Superior Court, as an appellate court of probate,
*484
granting the plaintiff’s motion to set aside, for lack of jurisdiction, a decree of the Probate Court for the district of New Haven accepting an annual account, fоr the calendar year 1957, filed by the trustees of a trust under the will of Constand A. Moeller. The corpus of the trust had been established prior to 1940 upon the settlement of the estate. There is no finding, and consequently certain facts assumed by the parties do not appear in the aрpeal record. We have decided, however, to take the case as presented by the parties. See
Schwartz
v.
Chapel Realty Co.,
The trustees, since the inception of the trust, had filed with the Court of Probate annual accounts, еach covering a calendar year, as required by what is now § 45-268 of the General Statutes, and each such account had been accepted, approved and allowed, after notice and hearing under the provisions of what is now § 45-269. In accordance with this practice, in February, 1958, they filed an annual account covering the calendar year 1957. The Probate Court ordered a hearing, of which the plaintiff, L. Reed Phillips, as one of the numerous beneficiaries under the trust, received due notice. In July, 1958, before the date fixed for the hearing, Phillips instituted an independent equity action in the Superior Court seeking (a) an accounting from the trustees for substantially the entire period during which the trust had existed, including the calendar *485 year 1957, and (b) damages for alleged mismanagement of the trust. On October 13,1958, Phillips filed in the Probate Court a рlea to the jurisdiction, setting forth that he had brought an independent equity action in the Superior Court, returnable on the first Tuesday of August, 1958, “demanding an accounting which included the year of 1957,” and that the Probate Court was thereby deprived of jurisdiction to take any action on the pending аccount for that year. The Probate Court, on November 19, 1958, allowed the account for the year 1957, and thus inferentially overruled the plea to the jurisdiction. Phillips then took the present appeal to the Superior Court. In his reasons of appeal, he claimed еrror in the action of the Probate Court in (a) taking jurisdiction of the annual account, and (b) accepting the account despite the fact it was inaccurate and reflected various improper expenditures. Neither branch of the appeal was ever rеally decided because on February 17, 1959, Phillips filed, in this appeal from probate, a motion to set aside the probate decree for lack of jurisdiction, and the court granted the motion.
In essence, the motion was based on the claim that the Probate Court had lоst all jurisdiction of the trustees’ accounting for the year 1957 upon the institution of the independent equity action in the Superior Court. The decision on the motion must be tested by its allegations. There were no allegations indicating that the independent action sought relief which the Probate Court was incompetent to give, as far as the 1957 account itself was concerned.
Dettenborn
v.
Hartford-National Bank & Trust Co.,
In the
Dettenborn
case, a plea in abatement was filed in the independent еquity action, which in that case, as in this, was the subsequent action. Here, however, no plea in abatement was filed in the in
*487
dependent equity action. The original plea to the jurisdiction and the motion to set aside the probate decree were filed in the probate proceedings and this appeal from probate. The
Dettenborn
case in no way supports the action taken here, even had the motion granted been in the form of a plea in abatement, which is the proper method of raising the claim of a prior action pending. Suсh a plea is filed in the second suit, not in what was essentially the first proceeding, as was done here.
Dettenborn
v.
Hartford-National Bank & Trust Co.,
supra, 392;
Cole
v.
Associated Construction Co.,
It is true that the jurisdiction of probate courts over testamentary trusts is purely statutory and that equity still has jurisdiction of them except as exclusive jurisdiction may have been given by statute to the probate courts. But the jurisdiction of the probate courts over these trusts has been extended through the years.
DeLadson
v.
Crawford,
Even before the decision in the
Dettenborn
ease in 1936, a probate court had some jurisdiction, concurrent with that of a general equity court, over an ordinary annual account of a testamentary trustee. 2 Locke & Kohn, Conn. Probate Practice, p. 652. After that, the jurisdiction of the probate courts over such acсounts was further strengthened by the enactment of § 1304e of the 1939 Cumulative Supplement and § 690f of the 1941 Supplement.
Griffin
v.
Sturges,
To what extent the second and third of these possible differences still exist in view of the statutory enlargement of the jurisdiction of the probate •courts over accounts of testamentary trustees, it is unnecessary to determine. For present purposes, it is enough to point out that none of the three jurisdictional differences, nor all three in combination, •can operate to leave a probate court without any jurisdiction over the annual accounts of such trusts. The statutory jurisdiction of a probate court over the ordinary annual accounts of testamentary trustees is at least concurrent with that of the Superior Court as a court of equity.
Dettenborn
v.
Hartford-National Bank & Trust Co.,
While this disposes of the present appeal, we-point out, in an endeavor to expedite the further proceedings, certain considerations which may prove helpful. It may be that because of the inability of' the probate courts to grant as complete relief as a court of equity, that court, that is, the Superior-Court in the independent action, may proрerly proceed despite the prior pendency of probate proceedings.
Dettenborn
v.
Hartford-National Bank
&
Trust Co.,
supra, 393. It may be, also, that the Superior Court, as a court of general equity jurisdiction, could enjoin further proceedings in the Probate-Court in order to prevent unnecessary dupliсation and to preserve the full advantages of the equitable-remedy. See 1 C.J.S. 647, § 15;
Grammer
v.
Greenbaum,
In summary, the remedy against duplication and interference from the simultaneous exercise of jurisdiction by courts of concurrent, though nоt coequal, jurisdiction where, as here, the second action is brought in the court of the greater jurisdiction, is (a) by procedure in the court in which the second action is brought, as by the granting of a plea in abatement or by a stay by the court of its own proceedings, or, in exceptional situations, by the enjoining of the first proceedings until the second are •determined, or (b) by procedure in the court in which the first action was brought, as by the granting of a voluntary stay of its own proceedings. Here, there was no action in the second case, the independеnt equity action, and it is apparent from *492 the terms of the present judgment that the granting of the motion to set aside the probate decree did not operate as a voluntary stay of the judicial settlement of the account on appeal but, on the contrary,, erroneously ousted the Probate Court, as well as the Superior Court as an appellate court of probate,, of jurisdiction to act on the account at all.
There is error, the judgment is set aside, and the case is remanded to be proceeded with according to-law.
In this opinion the other judges concurred.
