Thayer's Greek Lexicon

 Bernice = "bring victory"
1. the eldest daughter of Herod Agrippa I. Acts 12:1

She was first married to her uncle Herod, king of Chalcis, and after
his death (A.D. 48. she lived under circumstances of great suspicion
with her own brother, Agrippa II, in connection with whom she is
mentioned as having visited Festus on his appointment as procurator
of Judea.