after stating the ease, delivered the opinion of the court.
It is axiomatic that, in order to give this court jurisdiction on writ of error to the highest court of .a State, in which a decision in the suit could be had, it must appear affirmatively not only that a Federal question was presented for decision by the highest court of the State having jurisdiction, but that its-decision was necessary to the determination of the cause, and that it was actually decided or that the judgment as rendered could not have been given without deciding it. And where the decision complained of rests on an.'independent ground, not involving a Federal question and. broad enough to maintain the judgment, the writ of error will be dismissed by this court without considering any Federal question that may also have been presented.
Eustis
v. Bolles,
But such special claim, if duly made, would have been unavailing,, as the judgmént rested upon the proposition that the grant under which .the plaintiff in- error deraigned title was simulated, and this was a ground sufficient to sustain .it *394 involving no Federal question. The parties claimed under separate private land claims, originating, as alleged, under the Republic of Mexico, and separately confirmed, surveyed, and patented by the authorized officers of the United States.
The eighth article of the treaty of Guadalupe Hidalgo, 9 Stat. 922, 929, provided: “ In the said territories, property •of every kind, now belonging to Mexicans not established there, shall be inviolably respected. The present owners, the heirs of these, and all Mexicans who may hereafter acquire' said property by contract, shall enjoy with respect to it guaranties-equally ample as if the same belonged to citizens of the United States.”
Upon the acquisition of the country, the rights of the inhabitants to their property were retained, and they were entitled by the law of nations to protection in them to .the same' extent as under the former government, which protection the treaty also secured. As remarked by Mr. Justice Field in
Beard
v. Federy,
"While the confirmation of these claims might be-conclusive' .as against the United'States and those claiming under them, such confirmation and patent could have no effect upon the -interests of third persons in respect of grants to them from the former sovereign. The state courts were open for the determination between individuals of the priority or validity
*395
of conflicting titles under different grant's from the same antecedent source, and the issue as to whether one of the two grants was forged or obtained by fraud did not involve the denial of a right or title set up under the treaty _>r the statute. The treaty extended no protection to a fraudulent claim, nor did' proceedings under the statute to which each was respectively not a party or privy determine any such question as between these private parties, neither of whom claimed under'the .United States by title subsequent, but both, of whom claimed under patents based upon .Mexican grants.
Lynch
v. Bernal,
We have not deemed it necessary to examine the question raised under the practice in California allowing separate *396 appeals to lie from a judgment and from an. order granting .or refusing a new trial, and for the purposes of this case have treated the judgment of the Supreme Court, which not only-affirmed the order of the'Superior Court overruling the motion, but the judgment as well, as the last and final judgment in ■ affirmance óf a final decree in equity in the court below.
Writ of error dismissed.
