"Herzogt\u00FCmer Bremen und Verden (de)"@en . . "Duchies of Bremen and Verden"@en . . "1648-05-15Z"^^ . "Bremen-Verden"@en . . "''Hertigd\u00F6met Bremen och"@en . "Hertigd\u00F6met Verden'' (sv)"@en . "Bremen-Verden, formally the Duchies of Bremen and Verden (German pronunciation: [\u02C8f\u025B\u02D0\u0250\u032Fd\u0259n]; German: Herzogt\u00FCmer Bremen und Verden), were two territories and immediate fiefs of the Holy Roman Empire, which emerged and gained Imperial immediacy in 1180."@en . . "1648Z"^^ . . "1823Z"^^ . .