What is "kouropalates"

Kouropalatēs, Latinized as curopalates or curopalata (, from "[the one in] charge of the palace") and Anglicized as curopalate, was a Byzantine court title, one of the highest from the time of Emperor Justinian I ( r. 527–565) to that of the Komnenoi in the 12th century. The female variant, held by the spouses of the kouropalatai, was kouropalatissa.