By the 1550s a dominant proportion of the deputies to the Sejm were Protestants. But their number is not representative of the population as a whole, since the most ardently Catholic palatinates often returned Protestant deputies. By 1572 the Senate provided a similar picture. Of the ‘front-bench’ seats, thirty-six were held by Protestants, twenty-five by Catholics and eight by Orthodox, which again meant only that many magnates had converted to Calvinism. It was they who provided the conditions for its growth in Poland. The Oleśnicki family founded a Calvinist academy in their town of Pińczów, which became the foremost centre of Calvinist teaching and publishing in that part of Europe, referred to by the faithful as ‘the Athens of the North’. Similar centres were established on a smaller scale by the Leszczyński family at Leszno, and the Radziwiłł at Nieśwież, Birże and Kiejdany.
Although they gained an ascendancy, the Calvinists never managed to control the Protestant movement in Poland. The northern cities stood by Luther; Anabaptists seeking refuge from persecution in Germany appeared in various areas of the country in the 1530s; and in 1551 Dutch Mennonites set up a colony on the lower Vistula.
The Protestant sect which produced Poland’s most significant contribution to Christian philosophy was the Arians. Expelled from Bohemia in 1548, they settled in Poland, where they were known as ‘Czech Brethren’ and later Arians, since two of their fundamental beliefs—the human nature of Christ and the rejection of the Trinity—were first voiced by Arius at the Council of Nicea in AD 235. They also came to be known variously as Anti-Trinitarians, Polish Brethren and Socinians.
Theirs was a rationalist and fundamentalist response to the teachings of Christ, whom they held to be a divinely inspired man. They were pacifists, opposed to the tenure of civic or military office, to serfdom, to the possession of wealth, and to the use of money, believing as they did in the common ownership of all material goods.
They gained many converts—up to about 40,000 adherents practising in some two hundred temples scattered throughout the country. Their spiritual centre was Raków, where they established an academy, visited by students from all over Europe. It was here that the Raków Catechism was published, the work of Fausto Sozzini (Socinius), a nobleman from Siena who sought refuge in Poland and became one of the leading lights of the movement. The two most prominent Polish Arians were Marcin Czechowicz and Szymon Budny, the second of whom made a fine translation of the Bible into Polish and was also responsible for a rapprochement with the Jews, which produced some curious results.
The Jewish community had also been affected by the spirit of the times. The expulsions from the Iberian peninsula had brought many distinguished Spanish scholars to Poland, and in 1567 a Talmudic academy was founded at Lublin, with the eminent Solomon Luria as rector, which enriched the religious debate. The Jews were by no means united, as there were considerable colonies of Karaites in eastern Poland who accepted only the Bible and rejected the Talmud.
The Arians made many converts from the ranks of Talmudic Jews, while a number of Arians and Calvinists converted to Judaism. It was one of these converts, ‘Joseph ben Mardoch’ Malinowski, who played the most incongruous part in this religious inter action. It was he who put the finishing touches to the Hebrew original of
In other countries the established Church reacted with violence to the slightest departure from dogma, let alone to apostasy. The reaction of the Polish hierarchy was pragmatic, often cynical, sometimes vehement, but never hysterical. Bishop Drohojowski of Kujavia, a region profoundly affected on account of its many German-dominated towns, went out of his way to meet prominent Lutherans and sanctioned their takeover of the Church of St John in Gdańsk since most of the parishioners had gone over to the heresy. Elsewhere in his diocese he allowed the sharing of parish churches by Catholics and Lutherans.