He created a ranked imperial service based on ability rather than birth, whose members were obliged to serve wherever required.

Not less than six officers of the name appear to be distinguishable in the imperial service during the thirty years' war.

He was in the imperial service before his death.

From 1606 to 1630 he was engaged in the imperial service.

The survivors were captured by the Byzantines and taken into imperial service.

I had a personal share in some of these events during my imperial and public service.

The diary was probably written after she entered imperial service.

They'll be willing enough, in exchange for land and wealth, to accept new terms of imperial service.

Being a catholic, John could make his career in the imperial service.

At their heels was a troop of Khamorth in imperial service.