Caiaphas the High Priest
Caiaphas, who's name means "searcher" was appointed high priest (after Simon ben Camith) by the procurator Valerius Gratus, under Tiberius, 18 A.D.. He continued in office from A.D. 26 to 37, when the proconsul Vitellius deposed him. He was the president of the Jewish council (Sanhedrim) which condemned the Lord Jesus to death, Caiaphas declaring Him guilty of blasphemy.
Caiaphas was the official high priest during the ministry and trial of Jesus (Matt 26:3, 57; Luke 3:2; John 11:49; 18:13, 14, 24, 28; Acts 4:6).
It was Caiaphas who, unknowingly, made the incredible prophecy concerning God's plan of sacrificing Jesus for the sins of the nation and even the whole world:
John 11:49-50 And one of them, Caiaphas, being high priest that year, said to them, "You know nothing at all, nor do you consider that it is expedient for us that one man should die for the people, and not that the whole nation should perish."