German word for "emperor", associated with rulers of the German Empire (1871–1918)
Kaiser is the German title for emperor. In general, the German title in principle applies to rulers anywhere in the world above the rank of king (König). In English, the word kaiser is mainly applied to the emperors of the unified German Empire (1871–1918) and the emperors of the Austrian Empire (1804–1918). During the First World War, anti-German sentiment was at its zenith; the term kaiser—especially as applied to Wilhelm II, German Emperor—thus gained considerable negative connotations in English-speaking countries.
https://en.wikipedia.org/wiki/Kaiser
Kaiser is the German title for emperor. In general, the German title in principle applies to rulers anywhere in the world above the rank of king (König). In English, the word kaiser is mainly applied to the emperors of the unified German Empire (1871–1918) and the emperors of the Austrian Empire (1804–1918). During the First World War, anti-German sentiment was at its zenith; the term kaiser—especially as applied to Wilhelm II, German Emperor—thus gained considerable negative connotations in English-speaking countries.
