Alexander

A priest, in the time of the New Testament · Tribe of Levi · named in 1 verse

the name means man-defender Strong's Lexicon

Alexander was a member of the high-priestly family in Jerusalem who was present during Peter and John's interrogation before the Sanhedrin.

From Easton's Bible Dictionary

Man-defender. (1.) A relative of Annas the high priest, present when Peter and John were examined before the Sanhedrim (Acts 4:6).

Easton's Illustrated Bible Dictionary, 1897 — public domain, quoted in full and unedited.

First named at Acts 4:6.

Acts 4:6 along with Annas the high priest, Caiaphas, John, Alexander, and many others from the high priest’s family.