Romanum decet Pontificem (named for itsLatinincipit: "it befits the Roman Pontiff") is apapal bull issued byPope Innocent XII (1691–1700) on June 22, 1692, banning the office ofcardinal-nephew, limiting his successors to elevating only onecardinal relative,[1] eliminating varioussinecures traditionally reserved for cardinal-nephews and capping thestipend orendowment the nephew of a pope could receive to 12,000scudi.[2][3][4]
Romanum decet Pontificem was later incorporated into theCode of Canon Law of 1917 in canons 240, 2; 1414, 4; and 1432, 1.[5] In 1694, Innocent XII's series of reforms was capped off with an expensive campaign to eliminate the venality of offices while reimbursing their current holders.[6]
However, followingRomanum decet Pontificem, only three of the eight popes of the 18th century did not make a nephew or brother cardinal, and two of the three were members of monastic orders, that is without a family in the proper sense.[7]
The bull is available in Latin here: Innocentius XII, Papa. 1870. “Romanum decet Pontificem [...] Dat. die 22 iunii 1692, pontif. anno 1.” InBullarium romanum (Volume 20): Bullarum diplomatum et privilegiorum santorum romanorum pontificum - taurinensis editio locupletior facta collectione novissima plurium brevium, epistolarum, decretorum actorumque S. Sedis a S. Leone Magnus usque ad praesens, edited by Francesco Gaude, Luigi Tomassetti, Charles Cocquelines, and Luigi Bilio, 441–6. Augustae Taurinorum: Seb. Franco et Henrico Dalmazzo editoribus.[8]