potentate

这位中世纪君主要求所有臣民对他绝对效忠。

The medieval ___potentate demanded absolute loyalty from all his subjects.

这位CEO行事像个公司独裁者，所有决定都不经董事会商议。

The CEO acted like a corporate ___potentate, making every decision without consulting the board.

外国使节们等了好几周才得到这位统治者的接见。

Foreign diplomats had to wait weeks before the ___potentate granted them an audience.