John Preston (1587–1628) was an Anglican minister and master of Emmanuel College, Cambridge.

Upbringing John Preston, the son of Thomas Preston, a farmer, and his wife Alice, daughter of Lawrence Marsh of Northampton, was born at Upper Heyford in the parish of Bugbrook, Northamptonshire. He was baptised at Bugbrook church on 27 October 1587. His father died when he was 13 years old, and his mother's maternal uncle, Creswell, who was mayor of Northampton and rich and childless, adopted Preston, placing him at the Northampton Grammar School, and subsequently with a Bedfordshire clergyman named Guest for instruction in Greek. He matriculated as a sizar at King's College, Cambridge, on 5 July 1604, his tutor being Busse, who became master of Eton in 1606. King's College was then famous for the study of music; Preston chose 'the noblest but hardest instrument, the lute', but made little progress. In 1606 he migrated to Queens' College, where he had as tutor Oliver Bowles, B.D. Creswell had left him the reversion of some landed property, and he thought of a diplomatic career. With this view he entered into treaty with a merchant, who arranged for his spending some time in Paris, but on this merchant's death the arrangement fell through. Preston then turned to the study of philosophy, in which he was encouraged by Porter, who succeeded Bowles as his tutor. By Porter's interest with Humphrey Tyndall, master of Queens' and dean of Ely, Preston, who had graduated B.A. in 1607, was chosen fellow in 1609. From philosophy he now turned to medicine; got some practical knowledge under the roof of a friend, a physician in Kent, 'very famous for his practice'; and studied astrology, then valued as a handmaid to therapeutics.

Career as a preacher About 1611, the year in which he commenced MA, he heard a sermon at St Mary's from John Cotton, then fellow of Emmanuel, which opened to him a new career. Cotton had a great reputation as an elegant preacher; but this was a plain evangelical sermon, and disappointed his audience. He returned to his rooms, somewhat mortified by his reception, when Preston knocked at his door, and that close religious friendship began which permanently influenced the lives of both. Preston now gave himself to the study of scholastic divinity; Aquinas seems to have been his favourite; he thoroughly mastered also Duns Scotus and William of Ockham.

His biographer tells a curious story of his activity in securing the election (1614) of John Davenant as master of Queens' in succession to Tyndal. George Montaigne, afterwards Archbishop of York, had his eye on this preferment; but immediately on Tyndal's death Preston rode post-haste to London, reaching Whitehall before day-break. Here he made interest with Robert Carr, 1st Earl of Somerset, with a view to secure court sanction for the choice of Davenant. Returning to Cambridge, he had the election over before Montaigne got wind of the vacancy.

During the visit of James I to Cambridge in March 1615, Preston distinguished himself as a disputant. He was chosen by Samuel Harsnett, the vice-chancellor, as 'answerer' in the philosophy act, but this place was successfully claimed by Matthew Wren, and Preston took the post of first opponent. His biographer, Thomas Ball, gives an account of the disputation on the question 'Whether dogs could make syllogismes'. Preston maintained that they could. James was delighted with his argument (which Granger thinks Preston borrowed from a well-known passage in Montaigne's Essays), and introduced a dog story of his own. 'It was easy to discerne that ye kings hound had opened a way for Mr. Preston at ye court'. Sir Fulke Greville, 1st Baron Brooke, became his firm friend (he ultimately settled £50 a year upon him). But Preston had by this time given up his early ambition; though he said little of his purpose, his mind was set on the ministry, and he was reading modern divinity, especially Calvin.

Puritan leanings His coolness in the direction of court favour gave rise to suspicions of his puritan leaning. These were increased by an incident of James's second visit to Cambridge. A comedy called Ignoramus, by George Ruggle of Clare Hall, was to be acted before the king. Preston's pupil Morgan (of the Morgans of Heyford) was cast for a woman's part. Preston objected; the lad's guardians over-ruled the objection; Morgan, who was removed to Oxford, subsequently joined the Roman Catholic Church. His strictness greatly increased his reputation as a tutor with puritan parents; 'he was,' says Fuller, 'the greatest pulpit-monger in England in man's memory. ... every time, when Master Preston plucked off his hat to Doctor Davenant, the college master, he gained a chamber or study for one of his pupils'.

The college buildings were enlarged to provide for the influx of students. He was in the habit of sending those designed for the church to finish their studies with Cotton, now vicar of Boston, Lincolnshire. Meanwhile, Preston's health was suffering, and he was troubled with insomnia. Twice he applied for advice (once in disguise) to William Butler of Clare Hall, a successful empiric. Butler only told him to take tobacco; on doing so he found his remedy in 'this hot copious fume.'

Holy orders

Preston had now taken orders, and become dean and catechist of Queens'. He began a course of sermons which were to form a body of divinity. Complaints were made to the vice-chancellor that the college chapel was crowded with scholars from other colleges and townsmen. Order was issued excluding all but members of the college. Preston then began an afternoon lecture at St. Botolph's, of which Queens' College is patron. This brought him into conflict with Newcome, commissary to the chancellor of Ely, whose enmity Preston had earned by preventing a match between his pupil, Sir Capel Bedels, and Newcome's daughter Jane. A dispute with Newcome at St. Botolph's delayed the afternoon service; to make room for the sermon, common prayer was for once omitted. Newcome sped to the court at Newmarket to denounce Preston as a nonconformist.

The matter came before the heads of houses, and there was talk of Preston's expulsion from the university. At the suggestion of Lancelot Andrewes, then Bishop of Ely, Preston was directed to declare his judgment regarding forms of prayer in a sermon at St. Botolph's. He acquitted himself so as to silence complaint. Soon afterwards he was summoned to preach before the king at Finchingbrook, near Royston, Cambridgeshire. James highly approved his argument against the Arminians; he would have shown him less favour had he known that Preston was the author of a paper against the Spanish match, circulated with much secrecy among members of the House of Lords. He was proposed as a royal chaplain by James Hamilton, 2nd Duke of Abercorn, but James thought this premature.

Chaplain-in-ordinary

Preston's kinsman, Sir Ralph Freeman, who had married a relative of George Villiers, 1st Duke of Buckingham, now took occasion to represent to Buckingham that he might make friends of the puritans by promoting Preston. Through Buckingham's interest he was made chaplain-in-ordinary to Prince Charles. He took the degree of Bachelor of Divinity in 1620. On Davenant's election (11 June 1621) to the see of Salisbury, Preston had some expectation of succeeding him as Margaret professor of divinity. He felt his Latin to be rusty, and, as an exercise in speaking Latin, he resolved on a visit to the Dutch universities, a project which he carried out with a singular excess of precaution.

From the privy council he obtained the necessary licence for travel. He gave out that he was going, the next vacation, to visit Sir Richard Sandys in Kent, and possibly to drink the Tunbridge waters. From the Kentish coast he took boat for Rotterdam, in a lay habit with 'scarlet cloake' and 'gold hat band'. In Holland he consorted with Roman Catholics as well as Protestants. On his return to Cambridge he met the rumour of his having been beyond the seas with a wonder 'at their silliness, that they would believe so unlikely a relation'. After all he had been outwitted, for Williams, the lord keeper, suspecting some puritan plot, had set a spy on his movements, who sent weekly intelligence of his doings.

Master of Emmanuel

In February 1622 John Donne resigned the preachership at Lincoln's Inn, and the benchers elected Preston as his successor. A new chapel, finished soon after his appointment, gave accommodation to the large numbers who flocked to hear him. A more important piece of preferment followed, but it was not obtained without intrigue. Laurence Chaderton, the first master of Emmanuel, had held that post with distinction for thirty-eight years. He had outlived his influential friends, and the fellows thought that to secure Preston's interest with Buckingham would be to the advantage of their college. In particular they wanted a modification of the statutes, which enjoined continuous residence, so cutting them off from chaplaincies and lectureships, and at the same time compelled them to vacate at the standing of DD, whether otherwise provided or not. From Preston's influence they hoped to gain more liberty, as well as to increase the number of college livings. Chaderton thought highly of Preston, but was very reluctant to resign, and doubted whether, if he did, an Arminian might not be appointed. Preston procured a letter from Buckingham (20 September 1622) assuring Chaderton that it was the wish of the king and the prince that he should make way for Preston, and promising him a 'supply of maintenance'. Accordingly, Chaderton resigned on 25 September; contrary to statute, the vacancy was not announced, on the plea that all the fellows were in residence; the election took place on 2 October with locked gates, and nothing was known of it at Queens' until Preston was sent for to be admitted as master of Emmanuel.

The statutes limited the master's absence to a month in every quarter. This would interfere with Preston's preaching at Lincoln's Inn. His ingenuity found out evasions to which the fellows consented; the statutes condoned absence in case of 'violent detention ' and of 'college business'; a 'moral violence ' was held to satisfy the former condition, and a suit at law about a college living, which lasted some years, formed a colourable pretext for alleging college business. But Preston was inflexible on the point of vacating fellowships. According to Ball, he had been selected by Buckingham to accompany Arthur Chichester, 1st Baron Chichester, on a projected embassy to Germany, and was, on this occasion, was made a doctor of divinity by royal mandate. There is probably some confusion here: Chichester's actual expedition to the palatinate was in May–September 1622.

Cambridge again Preston was anxious for opportunities of preaching at Cambridge, and listened to proposals in 1624 for putting him into a vacant lectureship at Holy Trinity Church, Cambridge. The other candidate, Middlethwait, fellow of Sidney Sussex, was favoured by Nicholas Felton, Bishop of Ely. The matter was referred to James I, who wanted to keep Preston out of a Cambridge pulpit, and, through Edward Conway (afterwards Viscount Conway), offered him any other preferment at his choice. It was then that Buckingham told Preston he might have the bishopric of Gloucester, vacant by the death of Miles Smith (d. 20 October 1624). But Preston, backed by the townsmen, maintained his ground and got the lectureship.

Death of James I