1627年、処女作The Perpetuity of a Regenerate Man's Estateでアルミニウス主義を攻撃した。また、カルヴァン主義に対して書かれたものを弾圧するよう議会に要求し、聖職者はドルト会議の決議に賛同すべきだと主張した[2]。プリンは厳しい規律励行者で、飲酒は罪深いと主張し、男性が長髪であることはキリスト教徒にとっては見苦しく背徳であるとし、他方で女性が短髪にするのは女らしくなく、不自然で、恥知らずの、非キリスト教徒的であると主張した[3][4]。
プリンが迫害者とみなしたウィリアム・ロード宛に判決が不当であると手紙を送ったが、ロードはこの手紙を新しい告発の材料として代理人に渡した。しかし、プリンは手書きの手紙の所有権を主張して返還させたあと、裂いて断片にした。ロンドン塔でプリンは匿名で監督制や王によるスポーツ法令(Declaration of Sports)を批判する論文を執筆し、出版した。ノイが死亡すると、これは警告であると述べた[5]。ジョン・バストウィック(John Bastwick)のFlagellum Pontificisの附録や、A Breviate of the Bishops' intolerable Usurpationsでは高位聖職者を批判した。News from Ipswich(1636年)でのノリッジ司教マシュー・レン(英語版)への匿名の攻撃はプリンを再び星室庁送りにし、5000ポンドの罰金、残りの耳を失った。ジョン・フィンチ(英語版)男爵裁判官の提案で、プリンは左右の頬に煽動的誹毀者(seditious libeller)を意味する「S.L.」の焼印が押された[1]。
^The Substance of a Speech made in the House of Commons by William Prynne, 4 December 1648.
^True and Perfect Narrative of the Officers and Army's Force upon the Commons House; Brief Memento to the Present Unparliamentary Junto; Mr. Prynne's Charge against the King.
^William Prynne, A short demurrer to the Jewes long discontinued barred remitter into England Comprising an exact chronological relation of their first admission into, their ill deportment, misdemeanors, condition, sufferings, oppressions, slaughters, plunders, by popular insurrections, and regal exactions in; and their total, final banishment by judgment and edict of Parliament, out of England, never to return again: collected out of the best historians and records. With a brief collection of such English laws, Scriptures, reasons as seem strongly to plead, and conclude against their readmission into England, especially at this season, and against the general calling of the Jewish nation. With an answer to the chief allegations for their introduction. 1655.
^A True and Perfect Narrative of what was done by Mr. Prynne, &c., 1659.
^Brief Narrative how divers Members of the House of Commons were again shut out, 1660.
^The Character or Earmark of Mr. W. Prynne, 1659; A Petition of the Peaceable and well-affected People of the three Nations, &c.
^William Prynne (1659). The first part of a brief register, kalendar and survey of the several kinds, forms of all parliamentary vvrits: comprising in 3. sections, all writs, forms of summons to great councils, parliaments, convocations in the Tower, from the 5th of King John (1203) till 23 Edw 4. (1483) to all sorts of spiritual and temporal Lords, greatmen (members of,) and the Kings counsil (assistants to) the House of Lords: with other rare writs, and 4. exact alphabetical, chronological tables: 1. Of all abbots, priors, masters of orders, clergy-men, (except bishops:) 2. Of all dukes, earls, forreign kings, marquesses, princes of Wales: 3. Of all lay-barons, lords, vicounts, great men: 4. Of all the Kings counsil (justices, clerks, or other officers) with the several numbers of each of them, and of bishops, summoned to every council, parliament, and the years, rolls, dorses in every kings reign, wherein their names are recorded. Illustrated with choice, usefull annotations, observations concerning these writs differences, alterations, entries in the clause rolls: the stiles, titles, additions of patriarcha, cardinalis, electus, confirmatus, magister, &c given in them to spiritual; ... With other particulars. Publishing more rarities, rectifying more errors in vulgar writers, touching our parliaments, than any former treatises of this subject. By William Prynne Esq; a bencher of Lincolnes Inne (1st ed.). London: Printed for the author, and sold by Edward Thomas in Little Britain, and Henry Brome in Ivy-Lane. OCLC83751432Prynne went on to publish another three parts in 1660, 1662 and 1664.