Career
Primo became Zevi"s private secretary on Zevi"s journey from Jerusalem to Smyrna in 1665, cleverly managing to give to the advent of the pseudo-Messiah an air of dignity. From Smyrna, Primo spread the news among foreign Jews that the Messiah had actually appeared. In the name of Zevi, Primo sent a circular to the Jews (December 1665) advising the abolition of the fast-day of the tenth day of the month of Ṭebet on the Hebrew calendar.
In February, 1666, Primo accompanied Zevi to Constantinople.
Concerning the rest of his life not much is known.