Definition
The Long Parliament refers to two distinct English parliaments, each given this name because of its extraordinary duration:
1. The Long Parliament of Charles I: The parliament that assembled in November 1640, summoned by Charles I during the constitutional crisis preceding the English Civil War. It sat—intermittently and in varying forms—until 1660. Cromwell forcibly dissolved what remained of it (the "Rump Parliament") on April 20, 1653, though a remnant was recalled and finally dissolved as part of the Restoration settlement. This is the primary referent when legal and historical sources use "Long Parliament" without qualification.
2. The Long Parliament of Charles II: The parliament that convened in 1661 following the Restoration of the monarchy and was dissolved on December 30, 1678. To distinguish it from the earlier body, sources sometimes call it the "Long Parliament of Charles II" or the "Cavalier Parliament."
Both parliaments are relevant to English legal history primarily because of the legislation they produced. The Long Parliament of Charles I was the source of foundational constitutional enactments—including the Triennial Act and the abolition of prerogative courts—that shaped the relationship between Crown and Parliament and left lasting marks on English public law.
Common Confusion
The unqualified term "Long Parliament" almost universally refers to the 1640–1653 parliament of Charles I. Researchers encountering the phrase in historical legal sources should default to that meaning unless context indicates otherwise. The 1661–1678 parliament is rarely the intended referent in legal texts without explicit qualification. Additionally, the Long Parliament of Charles I is sometimes confused with its own subset: after Pride's Purge in 1648, the remaining members were called the "Rump Parliament," and this body—not the full Long Parliament—was what Cromwell dissolved in 1653. The distinction matters when tracing the provenance of specific legislation or constitutional acts.
Why It Matters in Research
Researchers working in early modern English legal history, constitutional law, or equity jurisdiction will encounter the Long Parliament as a legislative and institutional reference point. Several procedural and substantive reforms originating in this period—abolition of the Star Chamber, abolition of the Court of High Commission, limits on royal prerogative—are traced directly to acts passed between 1640 and 1649.
The key navigational trap is terminological: seventeenth-century and nineteenth-century legal sources use "Long Parliament" loosely. When a treatise or digest cites an act of the Long Parliament, verify whether the legislation predates or postdates Pride's Purge (December 1648), as the constitutional legitimacy of Rump Parliament enactments was itself contested and was relevant to whether those acts were later ratified or voided at the Restoration.
Historical dictionaries in the Law Mind corpus—including both Rapalje & Lawrence and Bouvier—give only a brief identification of the two parliaments, sufficient to orient a reader but not to parse the legislative record. For substantive legal analysis of acts passed during this period, researchers will need to consult primary parliamentary sources or specialist constitutional histories rather than relying on law dictionary entries.
The Long Parliament also appears as a constitutional reference point in later English and American legal writing on legislative supremacy, separation of powers, and prerogative courts—contexts where its symbolic weight often exceeds the precise legal content being cited.
Historical Dictionary Support
Rapalje & Lawrence and Bouvier's are in close agreement: both identify the two parliaments, give the same dates, and note the "Long Parliament of Charles II" distinction. Rapalje & Lawrence's entry appears to have been truncated in surviving text ("is sometimes called, by way of distinction, the long—"), but the intended completion is plainly "Long Parliament of Charles II," consistent with Bouvier. Neither source adds legislative detail, constitutional analysis, or discussion of the Rump Parliament subset—both treat this as a bare identification entry rather than an analytical one.
What both sources miss is any discussion of the legal consequences of the Parliament's acts or their fate at the Restoration. The Statute of Tenures (1660) and the Indemnity and Oblivion Act (1660) both bear directly on the legal legacy of legislation passed during this period, but they fall outside the scope of these dictionary entries. Researchers should treat these entries as orientation only.
Jurisdictional Note
The Long Parliament is a specifically English institution and its legal relevance is almost entirely confined to English constitutional and legal history. American legal sources that reference it do so in historical or comparative constitutional argument, not as binding authority.
Encyclopedia Cross-Reference
No Law Mind Encyclopedia entry directly addresses the Long Parliament or seventeenth-century English constitutional history. The matched entries (family law, tax, and Medicaid planning) are not relevant.