Background
He was born in Aachen as the son of a Lutheran minister, but moved to the Netherlands, where he became a Lutheran minister in Leiden in 1614.
He was born in Aachen as the son of a Lutheran minister, but moved to the Netherlands, where he became a Lutheran minister in Leiden in 1614.
He succeeded Henricus Justini, who had served only one year after the death of Bernhardus Aernoldi (or Muyners or Muykens). Finally someone from Amsterdam was brought in to shut him up, promising him another chance to air his views, but this never happened and the rumor spread that he had "lost his argument". Piqued, he wrote a booklet in response, further explaining his "six reasons to baptise" and including the five other reasons that he had prepared for his second chance to air his views, which had never been granted.
Vietor again responded with a warning.
Mooyer closed the argument with a final booklet, which finally seemed to settle the matter. His portrait by Frans Hals that was painted in 1644 and shows him gripping his book in both hands, was sold in 2008 to the London art dealer Johnny van Haeften for 1.2 million pounds, which at the time was considered a "low estimate".