Frans Kuyper (1629, Amsterdam

Amsterdam

Amsterdam is the largest city and the capital of the Netherlands. The current position of Amsterdam as capital city of the Kingdom of the Netherlands is governed by the constitution of August 24, 1815 and its successors. Amsterdam has a population of 783,364 within city limits, an urban population...

 — 21 October 1691, Rotterdam

Rotterdam

Rotterdam is the second-largest city in the Netherlands and one of the largest ports in the world. Starting as a dam on the Rotte river, Rotterdam has grown into a major international commercial centre...

) was a Dutch Socinian

Socinianism

Socinianism is a system of Christian doctrine named for Fausto Sozzini , which was developed among the Polish Brethren in the Minor Reformed Church of Poland during the 15th and 16th centuries and embraced also by the Unitarian Church of Transylvania during the same period...

 writer and printer.

First a Remonstrant minister at Vlaardingen

Vlaardingen

Vlaardingen is a town in South Holland in the Netherlands. It is located on the north bank of the Nieuwe Maas/Nieuwe Waterweg river at the confluence with the Oude Maas...

, he left the church on his objection to infant baptism. From 1663–1673 he opened a publishing house in Amsterdam

Amsterdam

Amsterdam is the largest city and the capital of the Netherlands. The current position of Amsterdam as capital city of the Kingdom of the Netherlands is governed by the constitution of August 24, 1815 and its successors. Amsterdam has a population of 783,364 within city limits, an urban population...

 and Rotterdam

Rotterdam

Rotterdam is the second-largest city in the Netherlands and one of the largest ports in the world. Starting as a dam on the Rotte river, Rotterdam has grown into a major international commercial centre...

 producing Socinian works, including 1665–1668 (with supplement 1692) the Biblioteca fratrum Polonorum. In 1676 he published against Spinoza's 1670 treatise on historical criticism of the Scriptures.

Kuyper played a leading part in the liberal movement of the Mennonites named the "Collegiants

Collegiants

In Christian theology, the Collegiants , also called Collegians, were an eclectic religious sect, formed in 1619 among the Arminians and Anabaptists in Holland...

", through which some Socinian ideas entered Mennonitism. Kuyper was one of the most active native Dutch Socinians along with Jan Pietersz Beelthouwer

Jan Pietersz Beelthouwer

Jan Pieterszoon Beelthouwer was a Dutch Collegiant controversialist of unorthodox beliefs from Enkhuizen. He propagated Socinian views....

 (c.1603–1665), Lancelot van Brederode (c.1583–1668), Johannes Becius (1626–1690), David Willemszoon Redoch (c.1633–1680), Jan Cornelisz Knol (d.1672), Adriaan Swartepaard (1641–1691), and Foecke Floris (d.1703). In the period 1660–1664 a dispute in the Mennonite movement over the Socinian sympathies of Galenus Abrahamsz de Haan, lead to a split between "Zonist" and "Lamist" Mennonites. Socinianism briefly resurfaced in the 1740s when the Mennonite minister Johannes Stinstra (1708–1790) was suspended 1742–1757 for advocating tolerance of Socinian views.

Works

• CUPERUS, Franciscus, Arcana atheismi revelata, examine Tractattis Theologico-Politici. Rotterdam
  Rotterdam
  Rotterdam is the second-largest city in the Netherlands and one of the largest ports in the world. Starting as a dam on the Rotte river, Rotterdam has grown into a major international commercial centre...
  
  . A large part of this work is dedicated to a refutation of the 4th chapter of Spinoza's Tractatus theologico-politicus of 1670

as editor:

• Danielis Breenii (Daniël van Breen) opera theologica ed. by F. Cuperus (Frans Kuyper) 1666

posthumus:

• Johann Wolfgang Jäger – Franciscus Cuperus mala fide aut ad minimum frigide atheismum Spinozae oppugnans‎ 1710