Translation of "Imperial" in German

There will be no winners if we take an imperial stance on this issue.
Es wird keine Sieger geben, wenn wir einen imperialen Standpunkt beziehen.
Europarl v8

From September 1683 the initiative passed to the imperial troops.
September 1683 ging die Initiative an die kaiserlichen Truppen über.
Wikipedia v1.0

During the First World War, it gave out the casualty list of the Imperial Navy.
Während des Ersten Weltkriegs gab das Reichsmarineamt die Verlustliste der Kaiserlichen Marine heraus.
Wikipedia v1.0

He was a pupil at Highgate School and subsequently studied chemistry, receiving his degree from Imperial College London.
Er studierte Chemie in London am Imperial College.
Wikipedia v1.0

Again, the upper floor was probably reserved for the imperial family.
Auch hier war das Obergeschoss wahrscheinlich der kaiserlichen Familie vorbehalten.
Wikipedia v1.0