The sovereign and his advisers who are the governing power of a state(noun)
The family and retinue of a sovereign or prince(noun)
WordNet. Princeton University. 2010.
Use "royal court" in a sentence
"As is true of most Mesopotamian omen-series, the predictions of Enûma Anu Enlil relate exclusively to the royal court and to the nation; the professional reader of omens, the bāru, performed his duties solely in order to advise the king of the future course of events."
"“Marshal Grouchy here has promised me that he will tell the royal court in Paris that we fought like the idiots we are, but had to concede to superior forces!”"