'Royal' in the Bible

And the [Babylonian] king told Ashpenaz, the chief of his officials, to bring in some of the sons of Israel, including some from the royal family and from the nobles,

Twelve months later he was walking on the upper level of the royal palace of Babylon.

The king said thoughtfully, ‘Is not this the great Babylon which I myself have built as the royal residence and seat of government by the might of my power and for the honor and glory of my majesty?’

All the commissioners of the kingdom, the prefects and the satraps, the counselors and the governors have consulted and agreed together that the king should establish a royal statute and enforce an injunction that anyone who petitions (prays to) any god or man besides you, O king, during the next thirty days, shall be thrown into the den of lions.

I issue a decree that in all the dominion of my kingdom men are to [reverently] fear and tremble before the God of Daniel,For He is the living God, enduring and steadfast forever,And His kingdom is one which will not be destroyed,And His dominion will be forever.

And in his place [in Syria] will arise a despicable and despised person, to whom royal majesty and the honor of kingship have not been conferred, but he will come [without warning] in a time of tranquility and seize the kingdom by intrigue.