Opinion by
This аppeal is from an order of the Court of Common Pleas of Fayette County discharging a rule to show cause why a decrеe dated April 4, 1972, should not be opened and vacated. That decree sustained preliminary objections to a cоmplaint filed by Connellsville Township Supervisors (Appellant) which challenged an an *534 nexation proceeding commenced after April 23,1970 under the Third Class City Code, Act of June 23, 1931, P. L. 932, 53 P.S. §§35501 et seq., inter alia, contending that it violated Article IX, Section 8, of the 1968 Constitution of Pennsylvania because the proceedings failed to provide for an initiative and referendum. In sustaining the preliminary objections and aрproving the annexation, the lower court held that this constitutional provision was not self-executing and that the “two-year time limitation therein set forth is merely hortatory and does not constitute an express or implied repealer of all extаnt legislation in those areas” and therefore the annexation provisions of the Third Class City Code controlled. This decision was not appealed.
Following our holding in
Middle Paxton Township v. Borough of Dauphin,
We agree.
Initially, we note that the identities of party, cause of action, and thing sued for, all the time honored prerequisites to the applicatiоn of the doctrine of
res judicata
are present here.
McCarthy v. Township of Mc
*535
Candless, 7
Pa. Commonwealth Ct. 611,
Chicot County Drainage District v. Baxter State Bank,
This application of the doctrine of
res judicata
to jurisdictional determinations which are subsequеntly determined to be erroneous has long been followed in Pennsylvania. In
Strauss v. W. H. Strauss & Company, Inc.,
*537 Although this broad principle admits to exceptions, 4 none are present here. At the time of the lower court’s decision in 1972, there was no appellate authority on the question of whether or not Article IX, Section 8 of our Constitution was self-executing. In reality, the jurisdiction оf the lower court itself is not here attacked, but its determination of the legal question of whether the annexation was prоcedurally defective. There is no question but that the court had jurisdiction, a complaint having been filed by Appellants under thе Third Class City Code, to determine this issue. Having done so, the fact that its construction of Article IX, Section 8 was erroneous does not make the determination any less binding upon the parties to that proceeding.
Affirmed.
Notes
48 Stat. 798.
Ashton v. Cameron County District,
Act of January 17, 1934, P. L. 243.
As the Supreme Court recognized in
Durfee v. Duke, supra,
on the federal level, the doctrines оf federal preemption and sovereign immunity may take precedence over the finality of a jurisdictional determination. In Pennsylvania, the courts have differentiated between jurisdictional determinations which are void on their face, i.e., whеre the want of jurisdiction is patent, and those where the determination is based upon extant jurisdictional facts, or merely аn error of law, the unappealed determinations of which are binding.
See Huffsmith v. Levering,
