Portugal
King Afonso I of Portugal entrusted Yahia Ben Yahi III with the post of supervisor of tax collection and nominated him the first Chief-Rabbi of Portugal (a position always appointed by the King of Portugal). King Sancho I of Portugal continued his father's policy, making Jose Ben Yahia, the grandson of Yahia Ben Rabbi, High Steward of the Realm. The clergy, however, invoking the restrictions of the Fourth Council of the Lateran, brought considerable pressure to bear against the Jews during the reign of King Dinis I of Portugal, but the monarch maintained a conciliatory position.
Until the 15th century, some Jews occupied prominent places in Portuguese political and economical life. For example, Isaac Abrabanel was the treasurer of King Afonso V of Portugal. Many also had an active role in the Portuguese culture, and they kept their reputation of diplomats and merchants. By this time, Lisbon and Évora were home to important Jewish communities.
In 1497, under the pressure of the newly born Spanish State through the clause Marriage of Isabella, Princess of Asturias, the Church and also of part of the Christian people, King Manuel I of Portugal decreed that all Jews had to convert to Christianity or leave the country. Hard times followed for the Portuguese Jews, with the massacre of 5000 individuals in Lisbon (1506), the forced deportation to São Tomé and Príncipe (where there is still today a Jewish presence), and the later and even more relevant establishment of the Portuguese Inquisition in 1536.
The Inquisition held its first Auto da fé in Portugal in 1540. Like the Spanish Inquisition, it concentrated its efforts on rooting out converts from other faiths (overwhelmingly Judaism) who did not adhere to the strictures of Catholic orthodoxy; like in Spain, the Portuguese inquisitors mostly targeted the Jewish New Christians, conversos, or marranos. The Portuguese Inquisition expanded its scope of operations from Portugal to the Portuguese Empire, including Brazil, Cape Verde, and Goa. According to Henry Charles Lea between 1540 and 1794 tribunals in Lisbon, Porto, Coimbra and Évora burned 1,175 persons, another 633 were burned in effigy and 29,590 were penanced, but documentation of at least fifteen Autos-da-fé between 1580–1640 – the period of the Iberian Union – disappeared, so the real numbers must be higher. The Portuguese inquisition was extinguished in 1821 by the "General Extraordinary and Constituent Courts of the Portuguese Nation" .
Most Portuguese Jews, thousands, would eventually leave the country to Amsterdam, Thessaloniki, Constantinople (Istanbul), France, Morocco, Brazil, Curaçao and the Antilles. In some of these places their presence can still be witnessed, like the use of the Ladino language by some Jewish communities in Turkey, the Portuguese based dialects of the Antilles, or the multiple Synagogues built by what was to be known as the Spanish and Portuguese Jews (such as the Amsterdam Esnoga).
Many Jews did stay in Portugal, however. A significant number converted to Christianity as a mere formality, practicing their Jewish faith in secret. These Crypto-Jews were known as New Christians, and would always be under the constant surveillance of the Inquisition – many, if not most of these, would eventually leave the country in the centuries to come and again embrace openly their Jewish faith (such was the case, for example, of the family of Baruch Spinoza).
Some of the most famous descendants of Portuguese Jews who lived outside Portugal are the philosopher Baruch Spinoza (from Portuguese Bento de Espinosa), and the classical economist David Ricardo.
Some Jews, very few, like the Belmonte Jews, went for a different and radical solution, practicing their faith in a strict secret isolated community. Known as the Marranos, some have survived until today (basically only the community from Belmonte, plus some more isolated families) by the practice of inmarriage and few cultural contact with the outside world. Only recently have they re-established contact with the international Jewish community and openly practice religion in a public synagogue with a formal Rabbi.
In the 19th century, some affluent families of Sephardi Jewish Portuguese origin, namely from Morocco, returned to Portugal (such as the Ruah and Bensaude). When the first Brazilian Constitution of 1824 allowed freedom of belief, the first Jews to openly emigrate to Brazil were also Sephardi Jewish from Morocco. The first synagogue to be built in Portugal since the 15th century was the Lisbon Synagogue, inaugurated in 1904.
Read more about this topic: History Of The Jews In Portugal