Pringle’s father, described as a householder at his death, left his son the leases of several tenements in Dover. Pringle himself followed in his father’s footsteps and became a baker. By August 1603 he was a member of the Dover corporation, and the following year he began the first of two consecutive terms as borough chamberlain. At around the same time he joined the Dover fellowship of lodemanage, informally known as the Trinity House of Dover and primarily responsible for providing pilots for the Channel crossing. He quickly became a trusted member, and in December 1608 was appointed ‘keeper of the box’, or treasurer, with an annual salary of 5s. He evidently gave such satisfaction that he was elected for a second term the following year.
By July 1613 Pringle had achieved sufficient prominence in Dover that he was selected to represent his borough at the Brotherhood of the Cinque Ports. In the following December he was briefly in trouble with his fellow members of the corporation over short weight, but continued to trade.
Pringle was elected to the second Caroline Parliament in January 1626 following a contest. Despite having never sat in the Commons before, Pringle, identified simply as a ‘Dover burgess’ by one diarist (and not identified at all by two others who nonetheless took down his words), delivered his maiden speech early in the Parliament, on 27 February. In this he provided a damning indictment of the government’s handling of the war with Spain. Of the 200 Dover men who had taken part in the recent, ill-fated expedition to Cadiz, all but four were now dead, he lamented. Many other Dover seamen were held prisoner at Dunkirk, and the town had lost three of its ships. These losses were compounded by the inadequate state of Dover’s defences, both at sea and on land. Dover Castle was so poorly defended that the night watch consisted of just eight men, he complained, and the ships provided by the Navy were too few, too large and too slow to combat the smaller, more nimble Dunkirkers, with the result that trade had come to a halt. Even were better ships to be provided, though, matters were unlikely to improve unless the Navy improved its rates of pay. The current rate of 4d. a day, declared Pringle, was so small that seamen ‘cannot live on it’. The Navy should be prepared to offer the higher pay given by its enemies and allow its crews a share of any booty taken. These sharp criticisms did not fall on deaf ears, for over the coming months the Navy under the duke of Buckingham attempted to improve pay, build smaller, faster ships and offer its crews a share of prize money. In the short term, however, Pringle kept up his assault. On 6 Mar. he again derided the government’s attempts to protect merchant shipping. The Navy’s ships riding in the Downs were, he observed, ‘not fit to keep the coast’, being too large and cumbersome. What were needed, he implied, were smaller vessels like those of the Dunkirkers.
Pringle made no further reported speeches during the Parliament, but he was named to four committees. The first, on 8 Mar., concerned a petition for compensation submitted by a merchant named Mark Willes, whose ship carrying oats and malt had been seized by the Dunkirkers in March 1625, before the outbreak of hostilities. Willes had earlier been promised recompense out of the prizes brought into Dover, over which Pringle himself now had some measure of control, as he had recently been appointed to the commission for their sale. However, the goods Willes had been offered had been conveyed by their owners to Dunkirk via Calais.
After the dissolution, in July 1626, Pringle attended a conference at Maidstone with a view to persuading the county magistrates of Kent to share in the cost of the shipping that the Crown now ordered the Cinque Ports to provide for coastal defence.
As mayor of Dover, Pringle was automatically placed on the billeting commission for Kent in September 1626. He was appointed very much against his will, not least because it meant that troops were subsequently billeted on Dover.
Pringle did not stand for re-election in 1628. At the beginning of the second session, in February 1629, the corporation sent him to Westminster ‘to be a solicitor to the High Court of Parliament’ against the water-bailiff of Dover.
