Definition
Er of the Black Rod (also: Gentleman Usher of the Black Rod) is a senior ceremonial officer of the British House of Lords, named for the black ebony staff of office topped with a golden lion that the officer carries as a symbol of authority. The role is principally one of ceremonial and administrative service to the House of Lords during parliamentary sessions. The officer's most prominent function is summoning the House of Commons to attend the Lords at the State Opening of Parliament — a ritual in which the Black Rod's messenger is famously shut out by the Commons before being admitted, symbolizing the lower house's independence from the Crown. During parliamentary sessions, peers who are impeached for a crime or contempt are first committed to the custody of the Black Rod.
Common Confusion
The term "Er of the Black Rod" as it appears in older legal sources is a truncated or corrupted form of "Gentleman Usher of the Black Rod" (sometimes "Gentleman" or "Usher" being dropped in shorthand references). Researchers encountering this abbreviated form in digests, indexes, or marginalia should recognize it as referring to the same office. It should not be confused with the Serjeant-at-Arms of the House of Commons, who performs analogous functions for the lower house but is a wholly separate officer.
Why It Matters in Research
This term is unlikely to appear in American legal sources except in historical or comparative constitutional law contexts, or in materials discussing parliamentary procedure and parliamentary privilege. Researchers working in English legal history — particularly in records touching impeachment, contempt of Parliament, or the administration of the House of Lords — may encounter references to the Black Rod's custodial role over impeached peers. Bouvier's inclusion of this term reflects the nineteenth-century American legal dictionary tradition of cataloguing English constitutional offices that formed the background of Anglo-American legal institutions. The truncated form "Er of the Black Rod" appearing in Bouvier's is characteristic of typographical loss common in digitized or reprinted editions of that work; researchers should be alert to such artifacts when searching the corpus. The Wharton citation and Black Book reference in Bouvier's point to English parliamentary sources that are not widely held in American collections.
Historical Dictionary Support
Bouvier's Law Dictionary provides a brief but accurate account of the office, identifying the Black Rod's ceremonial symbol, attendance on peers during parliamentary sessions, and the custodial function over impeached peers. The entry is consistent with standard English constitutional sources. Bouvier draws on Wharton and the Black Book of Parliament, both English authorities. The entry is notable for what it omits: no mention is made of the summoning function at the State Opening of Parliament, which is the aspect of the office most familiar to modern observers. This omission is typical of nineteenth-century American legal dictionaries, which tended to emphasize the judicial and custodial dimensions of English offices rather than their purely ceremonial roles.
Jurisdictional Note
This is an exclusively English (later British) constitutional office with no direct American counterpart. It has no operative legal significance in United States law. Researchers in Commonwealth jurisdictions — particularly Canada and Australia — may note that equivalent offices exist in those parliaments under similar names.