Portugal followed suit in December 1496 . However , those expelled could only leave the country in ships specified by the King . When those who chose to leave the country arrived at the port in Lisbon , they were met by clerics and soldiers who used force , coercion and promises to baptize them and prevent them from leaving the country . This episode technically ended the presence of Jews in Portugal . Afterwards , all converted Jews and their descendants would be referred to as New Christians or '' marrano '' . They were given a grace period of thirty years during which no inquiry into their faith would be allowed . This period was later extended until 1534 . However , a popular riot in 1506 resulted in the deaths of up to four or five thousand Jews , and the execution of the leaders of the riot by King Manuel . Those labeled as New Christians were under the surveillance of the Portuguese Inquisition from 1536 until 1821
popular riot in 1506
Lisbon massacre
History of antisemitism