

Mentioned in a 1570 list by King Sigismund II Augustus concerning Jews from Turkey/Venice referred by Joiseph ha-Nasi.
See articles by Moses Schorr, Zur Geschichte des Don Joseph Nasi
https://www.jstor.org/stable/44756920
https://www.jstor.org/stable/44756930
Could also be a son, not brother, of Rabbi Eliezer Ashkenazi, ABD Posen, "Maasei Hashem" who studied in Safed.