“Persecution of Jews” [Khwarazmian Dynasty; Present-day Iran, …] [Unconfirmed]
Commentary from other sources:
1) Jews of Persia are persecuted on the account of pseudo Messia David Alroy. [The persecution could have followed a decree issued by Shah Il-Arslan “The Lion” (Taj ad-Dunya wa ad-Din Abul-Fath Il-Arslan ibn Atsiz).]
Funk & Wagnalls: Jewish Encyclopedia, Volume IV (1903)