to be of the kingʼs party, affect, assume the state of a king
to be of the kingʼs party, Plu. Flam. 16: also, c. acc., ἐγώ εἰμι ὁ βασιλίζων τὸν τόπον εἰς ὀνόματι (sic) Μωυσ[ῆ] Stud.Pont. 3 No.10g (Amisus):—Med., affect, assume the state of a king, App. BC 3.18; so in Act., J. AJ 1.10.4.