Jews are expelled from the region around Warsaw, Poland. Christians usually just segregate Jews into walled ghettos to avoid being "infected" by them, but sometimes that doesn't suffice and Jewish communities are expelled entirely.
This often occurs in the wake of some event for which the Jews are accused of committing - desecration of a church, killing a Christian child and taking their blood, etc. In such cases the Jews are lucky not to be slaughtered entirely, so being expelled is almost a relief.
