Etymology
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Lateran 
c. 1300, popular name of the cathedral church of St. John Lateran at Rome, which is built on the site of the palace of the Plautii Laterani, a Roman family. Given by Constantine to the bishop of Rome, as a papal headquarters and residence for nearly 1,000 years it was the site of five general councils of the Western Church, that of 1215 being regarded as most important. The Lateran Accords of 1929 settled the relationship between Italy and the Holy See.
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banns (n.)
"proclamation or notice given in a church of an intended marriage," mid-15c. (late 12c. in Anglo-Latin), from Old English bannan "to summon, command, proclaim" (see ban (v.)). Also probably partly from Old French ban "announcement, proclamation, banns, authorization," from Frankish *ban or some other Germanic cognate of the Old English word. They were made part of ecclesiastic legislation 1215 by the fourth Lateran council.
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