Born in Denbigh Castle, of which his father was governor, Myddelton was apprenticed to a leading London Skinner, Erasmus Harby, with whom he was convicted of ‘a very lewd practice ... in uncasing and false marking of 25 bags of pepper and altering the numbers of other bags’, at Dartmouth, Devon in 1592. He subsequently moved to Weymouth, where he was assessed for the 1594 subsidy, and married the stepdaughter of Thomas Barfoot*.
Myddleton was returned to Parliament for Weymouth at the general election of 1604, during Barfoot’s mayoralty. His brother Hugh also sat in the Commons as Member for Denbigh Boroughs, and the records to not always distinguish between the two. The identity of the ‘Mr. Middleton’ who moved a proviso for the game laws bill on 8 June 1604 cannot be ascertained, but during the same session it was probably Robert who was named to committees for the Tunnage and Poundage bill (30 May), and the bill for London quays and wharves (20 June).
Myddelton’s business interests expanded rapidly following the peace with Spain: he joined the Levant Company in 1605 and the newly formed Spanish Company in 1606, by which time he and his partners were major exporters of cloth.
The like imposition may be imposed on all other commodities, and then merchandise must fall ... The great grief is that the profit of these impositions goeth not to the king immediately but to mean men like myself, and by this means for their sakes the younger sons of gentlemen, which might and have hitherto risen by the course of merchandise, must be unprovided of this good means of defence and traffic.
The currant imposition was voted a grievance, but the Crown proceeded in its collection regardless of these complaints.
In 1610 the question of impositions became a major issue in the Commons; the debates were dominated by lawyers, but Myddelton was one of a committee appointed to search the port books for information about the duties (16 June). Later, on 14 July, he was added to the committee for the bill to abolish these duties following a speech in which he argued ‘that all might be taken away’. Either Myddelton or his brother Hugh unsuccessfully moved for parliamentary privilege to obtain a stay of a Chancery injunction on 16 June, an incident may provide the context for a poorly reported speech of 18 July, ‘touching protections’.
In 1611 the East India Company sent Myddelton, by then one of their governing committee, to Amsterdam to consult with their Dutch counterparts, to whom he appealed on the grounds of common commercial interests:
As our nations have long continued in firm bonds and league of amity, so we might peaceably proceed to trade jointly together, without troubling of either states to right conceived injuries, or giving such an advantage to others who would willingly take the opportunity of fishing in the troubled streams of our divisions and dissensions.
His business expanded rapidly, and in the port books for 1612-13 he was recorded as having exported 3,135½ cloths, the largest quota of any London merchant for that year. He also made his first foray into municipal politics in 1612, with his election as second warden of the London Skinners’ Company.
In his first speech on 12 Apr., Myddelton tartly observed that the bills of grace offered by the Crown were designed to appeal to the gentry, ‘not to cities, boroughs, burgesses or merchants’, and tabled a bill to abolish impositions. At its second reading on 18 Apr., he joined in the general chorus of support: ‘here was great wrong done both to the king and subject. To the latter they were matters of extraordinary grievance, to the former of extraordinary deceit’.
The other major debate Myddelton initiated in the Commons concerned Alderman William Cockayne’s patent for the export of dressed cloth, a project intended to supersede the Merchant Adventurers’ monopoly. A Proclamation to ban the export of undyed cloth, scheduled for publication on 25 May, would have wrecked Myddelton’s business at a stroke, but five days earlier, he attacked Cockayne’s patent in the Commons. The Merchant Adventurers, he said, had been ‘convented before the [Privy] Council table and there pressed whether they would dye and dress all the cloth. They concluded it to be unfeasible. If it to be done with a pen or an argument at Council table, Mr. A[lderman] Cockayne will do it’. He noted that the new consortium would be able to circumvent most of the existing regulations applied to the cloth trade: ‘they have a patent to carry out other cloths not dyed or dressed ... they may ship in strange bottoms as well as English, have liberty to strain, stretch or use any other slights about the cloth’. The consequence was, he warned, that he and Bateman would lay off 3,000 workmen, and the Exchequer would lose customs revenues of £2,500 a year. Sir John Savile of Yorkshire and various West Country MPs corroborated his claims about economic dislocation, and Cockayne was questioned in committee the following afternoon, but another debate scheduled for the afternoon of 31 May never took place, and after the dissolution the project went ahead regardless of the Commons’ objections.
Myddelton also played an active part in promoting issues of specific concern to his constituents. On 20 Apr., West Country MPs attacked the French Company for being monopolized by Londoners. Myddelton, with a foot in both camps, attempted to pour oil on troubled waters: ‘no error ever in Parliament more submissively acknowledged. That no intendment to use the patent otherwise than for the good of all parts. But confesseth some miscarriage in it’. Having digressed into an attack on Londoners for their excessive imports of Spanish tobacco, he offered a compromise: that ‘this patent may be damned and an Act of Parliament for a government by a Company’. He repeated this plea when the Company’s patent came before the Commons on 3 May, but the committee appointed to consider the issue never reported.
The Crown evidently discounted Myddelton’s hostility towards Cockayne’s project and impositions, as in December 1614 he and Maurice Abbot* were sent to the Netherlands as technical advisers to Clement Edmondes* during negotiations over commercial disputes with the Dutch.
