The controversy expanded when the Remonstrant theologian Conrad Vorstius was appointed to replace Jacobus Arminius as the theology chair at Leiden. Vorstius was soon seen by Counter-Remonstrants as moving beyond the teachings of Arminius into Socinianism and he was accused of teaching irreligion. Leading the call for Vorstius' removal was theology professor Sibrandus Lubbertus. On the other side Johannes Wtenbogaert (a Remonstrant leader) and Johan van Oldenbarnevelt, Grand Pensionary of Holland, had strongly promoted the appointment of Vorstius and began to defend their actions. Gomarus resigned his professorship at Leyden, in protest that Vorstius was not removed. The Counter-Remonstrants were also supported in their opposition by King James I of England "who thundered loudly against the Leyden nomination and gaudily depicted Vorstius as a horrid heretic. He ordered his books to be publicly burnt in London, Cambridge, and Oxford, and he exerted continual pressure through his ambassador in the Hague, Ralph Winwood, to get the appointment cancelled." James began to shift his confidence from Oldenbarnevelt towards Maurice.