Justus Velsius

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Justus Velsius
Humanist

Justus Velsius, Haganus, or Joost Welsens in Dutch (c. 1510, The Hague, Low Countries[notes 1] – after 1581 at an unknown location), was a Dutch humanist, physician, and mathematician.

Velsius started his career as a highly respected professor of

liberal arts
in Leuven, Strasbourg, and Cologne. Later on he portrayed himself as a prophet, and promoted his own particular view of Christianity, outlined in a pamphlet "Christiani Hominis Norma" which he wrote in London. He came into conflict with civil and ecclesiastical authorities all over Europe, and spent his final years as a preacher and faith healer in his native Holland. While in Cologne Velsius was married to Beatrix van Steenhoven, and later on, in Groningen, to Grete Cassens.

Life

De mathematicarum disciplinarum vario usu dignitateque, 1544

After studying

arts and medicine in Bologna, Velsius graduated as doctor medicinae in 1538 and settled down as physician in Antwerp, 1540/41. In 1541 he moved to Leuven, where he met Portuguese humanist Damião de Góis,[2] and maintained friendly relations with Vesalius.[3] Even though Velsius did not have a university position he held public lectures in Greek, Latin, philosophy and mathematics. In 1544 he proposed a course on Trebizond's Dialectica. The authorities balked, and in the ensuing controversy they forced Velsius, whose theological purity was suspect, out of the university.[4] In 1542 he had failed in his bid to succeed Nannius, and he moved to Strasbourg in 1544 at the recommendation of Bucer, after a short teaching stint at the Marburg Latin School and possibly in Basel
.

Strasbourg

From Easter 1544-50 Velsius taught

St. Thomas collegiate church, through the mediation of Bucer. Sometime before 17 October 1548 he married Beatrix van Steenhoven. When Velsius got in trouble because he accepted the Interim and the resulting conflict with his Protestant colleagues, he moved to Cologne
in the spring of 1550; he probably only gave up his Strasbourg canonicate in 1553.

Cologne: prosecuted by the Inquisition

Velsius matriculated at Cologne on 3 June 1550. The Council of Cologne wanted to build a

prebend, but was instead remunerated by the council. His compensation was increased in 1551 and 1552, and he was charged with teaching mathematics as well. Velsius and his colleague Jakob Leichius, who was instrumental in establishing the Gymnasium Tricoronatum
, drafted guidelines for a curriculum of eight grades, similar to Sturm's humanistic curriculum in Strasbourg.

Velsius attended the meetings of the

Bookbinder's Guildhall at the Pfaffengasse,[5] where he met Anabaptist martyr Thomas von Imbroich.[6] Velsius' philosophical writings, in particular the work of Krisis[works 11] led to suspicion of heresy.[7] On 29 October 1554 Krisis was condemned by Cologne University, and Velsius' teaching license revoked (11 December 1554, confirmed 29 March 1555), since he did not distance himself from his writing. Emperor Charles V, who had become involved at the instigation of the cathedral chapter, the clergy and the university, urged the council in vain to take action against Velsius, who on 25 March 1555 had published a defense, Epistola ad Ferdinandum.[works 14] Only after Velsius attempted to give theological lectures at his home, and rejected the Eucharistic adoration and celibacy
, did the magistrate banish him in April 1555.

Velsius refused to leave, and went voluntarily in detention, from December 1555 to the end of March 1556. He asked his influential friend Viglius to support him, but Viglius declined to get involved. Greatly offended by this refusal, Velsius apparently accused his friend of Protestant leanings, and severed all connections with his former friend. Because of this precedent the council adopted in 1555 a comprehensive directive against all heretics.

The

Duchy of Berg. From there he made it to Mülheim, where he wrote Apologia, addressed to the Emperor Charles and King Ferdinand.[works 15] Slotanus replied in 1557 with the Apologia JV Hagani Confutatio.[8] In response Velsius wrote in September 1557 the Epistolae.[works 16] 1558 followed Slotanus' Disputationes adversus haereticos liber unus.[9]

Frankfurt: disputation with Calvin