'Royal' in the Bible

Late one afternoon about dusk, David got up from his couch and was walking around on the roof of the royal palace. From there he watched a woman taking a bath, and she was very beautiful to look at.

Whenever he cut his hair he cut it at the end of every year, because it grew thick on his head, which is why he cut it his hair weighed in at 200 shekels measured by the royal standard.