'Crowns' in the Bible

Say to the king and the queen mother:Take a humble seat,for your glorious crownshave fallen from your heads.

“In the shadow of HeshbonThe fugitives stand powerless [helpless and without strength],For a fire has gone out from Heshbon,A flame from the midst of Sihon;It has destroyed the forehead of MoabAnd the crowns of the heads of [the arrogant Moabites] the ones in tumult.