As is well known [Steven Runciman](http://he.wikipedia.org/wiki/%D7%A1%D7%98%D7%99%D7%91%D7%9F_%D7%A8%D7%A0%D7%A1%D7%99%D7%9E%D7%9F), a British historian known for his work on the Middle Ages, definitively clarified what the Holy War had been: "The Holy War itself was nothing more than a long act of intolerance in the name of God, which is the sin against the Holy Ghost". 

However I'm not interested in generic discussions or debates on this matter, but I want only to know precise notices about the massacre of Jews in England during 1190-1200.

In ["God's War: A New History of the Crusades" Christopher Tyerman][1] wrote:

> [...] during the recruitment for the third crusade in England in 1190
> were attack on the Jews especially vulnerable with the king's campaign
> for funds, his approaching departure and immediate financial
> requirements of the crusader who converged in English town ports and
> main roads in the early months of the year. In Lent 1190, bands of
> English crusaders, some motivated by a misguided notion of serving God
> and the cross, began looting Jewish property in commercial centers
> such as King's Lynn and Stamford. The violence reached a ghastly
> climax at York in mid march Well-connected local crusaders led a
> concerted attack on the Jewish community that culminated in a mass
> suicide and massacre at the royal castle, now Clifford's Tower, after
> which, revealingly, the bloodstained crusaders went to York Minster to
> destroy the Jews' bond of credit stored there.


Questions are: How many Jews died during these persecutions? In England, was the Jewish population drastically reduced when these persecution ended?


  [1]: http://www.journeywithjesus.net/BookNotes/Christopher_Tyerman_Gods_War_sm.jpg