1420 LYONS (France)
All Jews were expelled from Lyons, including the refugees from Paris who were expelled 20 years earlier. The only Jews left in France remained in Provence (until 1500) and in the possessions of the Holy See.
1420 May 23, DUKE ALBERT V (Austria)
Accused a rich Jew, Israel of Enns, of purchasing a wafer in order to desecrate it. All the Jews in the surrounding Viennese area were jailed.
1420 November 25, POPE MARTIN V
Favorably reinstated the old privileges of the Jews and ordered that no child under the age of twelve could be forcibly baptized without parental consent.
1421 March 12, WIENER GEZARAH (Vienna, Austria)
A combination of murder, libel and host desecration charges brought about the destruction of the entire Jewish community. This was done under the auspices of Archduke Albert of Austria and was partly due to the revival of the crusader spirit of the Hussite Wars. Many Jews were forcibly baptized - others took their own lives. Some converted and the rest were forced to leave.
1422 February 20, POPE MARTIN V (1417-31)
Issued a Bull reminding Christians that Christianity was derived from Judaism and warning Church leaders not to incite against the Jews. The Bull was withdrawn the following year, following allegations that the Jews of Rome attained the Bull by fraud.
1423 CONVENTION OF THE SHLAKHTA (Landed Gentry) (Varta Poland)
Led by King Vladislav Yagilu, the Shlakhta which served as a parliament, passed a law forbidding Jews to lend money against any security. In practicality it meant a far greater risk to all Jewish money lenders.
1424 COLOGNE (Germany)
Jews were banned from the city. This ban remained in effect until Cologne was annexed by revolutionary France in 1794.
1424 KAIFENG (China)
Jewish physician Y'en Ch'eng was given the surname "Chao" as an honor by the Emperor. This family, which probably originated in India and Babylon, became one of the leading Chinese Jewish families.
1427 March 9, POPE MARTIN V (Italy)
Ordered the Italian fleets to cease transporting Jews to Eretz Israel. The basis for the order was the claim that the Jews were responsible for building a Mosque on Mount Zion in the hope of eventually turning it into a synagogue. This made immigration to Eretz Israel far more difficult.