ca. 1591

“Jews Exterminated” command given by Prince Emanual Aaron [Moldavia; Present Day Moldova, Romania, Ukraine] [Unconfirmed] 

Commentary from other sources:
1) “In despotic fashion he ordered the decapitation of 19 Jews of Jassy without due process of law. By his command the entire Jewish community of Bucharest was exterminated.”
Kogan, Yefim: History of Jews in Bessarabia in the 15th to 19th Centuries; Geography, History, Social Status (2008)