In 1630 there was published at the College press at St. Omers an anonymous book entitled Charity mistaken, with the want whereof, Catholickes are vniustly charged: for affirming, as they do with grief, that Protestancy vnrepented destroies saluation. It was answered three years later by Christopher Potter, Provost of Queen’s College, Oxford, and there ensued a controversy lasting several years between Potter and Chillingworth, on the Protestant side, and the Jesuits, Matthew Wilson (alias Edward Knott) and John Floyd, on the Catholic side.