Koganeishi Hime

Koganeishi Hime is a important character of the Rainbow Star Movie. She is the ruler of the Houseki Kingdom.

Etymology
Koganeishi (黄金石) - Kogane (黄金) means "golden", from the words Ki (黄) "yellow" and Kin (金) "gold". Ishi (石) means "stone". So Koganeishi means "golden stone."

Hime (姫) - Hime means "princess".