János Gerendi  János Gerendi (died after 28 August 1594) was a Transylvanian politician who supported radical theological views. He "was in contact with nearly all the prominent representatives of the radical Antitrinitarians" after 1570. His followers, who regarded Saturday as the day of rest, but did not obey all the Old Testament laws, were known as "Gerendists". He accepted atheist philosophy from the late 1580s. János Gerendi was the scion of a Hungarian noble family. His family estates were located in the Principality of Transylvania. He studied at the University of Padua from 1575. He was made a judge at the princely court in 1585. He was one of the representatives of the Three Nations of Transylvania at the Diet in Medgyes in 1588. He urged the monarch, Sigismund Báthory, to expel the Jesuits from the principality. Báthory who regarded Gerendi as one of the principal leaders of the opposition ordered his arrest at Kolozsvár (Cluj-Napoca, Romania) on 28 August 1594. He was sentenced to death, but his son-in-law, Sigismund Rákóczi, achieved an amnesty. No information of Gerendi's later life was recorded, suggesting that he did not long survive his imprisonment. Gerendi held manor houses at Gerend and Alcina (now Luncani and Alțâna in Romania), where he granted asylum to the most radical theologians of his age. Johann Sommer dedicated one of his books to him in 1571. Jacob Palaeologus, who denied the deity of Jesus, was staying in Alcina from late 1574 to the summer of 1575. The Sabbatarian theologian, Miklós Bogáti Fazekas, often visited him at Gerend in the early 1580s. He persuaded Gerendi to declare Saturday as the day of rest in his estates and to introduce some Old-Testament rules relating to diet (the ban on eating blood and animals that had been strangled). Incited by Lutheran priests, peasants from Kerc (now Cârța in Romania) murdered Gerendi's nephew who promoted the work on Sundays in 1585. Although a Jesuit friar, István Szántó, credited him with the introduction of Sabbatarianism in Transylvania, Gerendi actually did not obey all the Old Testament laws.