Mich auch Pieter, danke, für den Hinweis 👍🤩

Quite right. It spurred me on, to look up my own definition of "caryatids".

Indeed, it is left up to the reader to seek the meaning of any word or term he or she is unfamiliar with - otherwise, there would be no end to to added explanations throughout the test for the many obscure references. ...

Danke euch🥴

You should keep in mind that at the time of writing, educated people for whom the book was intended were schooled in the classics, and the assumption is that no explanation is necessary, and there is none in the original text in English.

Are "caryatids" load-bearing pillars, shaped as young maidens? Perhaps the translation could indicate that...
"... had fifteen-foot-high gold-embroidered load-bearing pillars, shaped as young maidens, in his chamber."