Alexander Lysimachus the Alabarch (Greek: Άλέξανδρος ό Αλάβαρχος; c. 10 BC – after 41 AD) was an Alexandrian Jewish aristocrat.
Antonia Minor was a Roman noblewoman, who was the niece of Emperor Augustus and the youngest daughter of the triumvir Mark Antony.
Alexander had been a long-time friend of Antonia Minor's youngest child, the future Emperor Claudius.
[citation needed] As an indication of Alexander's great wealth, he had nine gates at the Second Temple in Jerusalem "overlaid with massive plates of silver and gold."
(Antiquities, 18.159-160) Sometime between 37 and 41 AD, the Emperor Caligula ordered Alexander to be imprisoned in Rome for an unknown reason.
After the death of Caligula in 41, his paternal uncle Claudius became Emperor and he immediately released Alexander from prison.