'Royal' in the Bible

Now let it be known to the king, that if that city is rebuilt and the walls are finished, then they will not pay tax, custom, or toll, and the revenue of the kings will be diminished.

So now, if it pleases the king, let a search be conducted in the king’s treasure house [in the royal archives] there in Babylon to see if it is true that a decree was issued by King Cyrus to rebuild this house of God at Jerusalem; and let the king send us his decision concerning this matter.”

with three layers of huge stones and one layer of timbers. Let the cost be paid from the royal treasury.