Denny’s paternal grandfather Sir Anthony†, confidant and groom of the Chamber to Henry VIII, acquired a substantial estate in Essex and Hertfordshire following the Dissolution of the Monasteries. Denny’s father, Henry, was a Marian Protestant exile who lived at Dallance, one-and-a-half miles north-east of the ruins of Waltham Abbey.
At college Denny befriended the future Calvinist divine Thomas Playfere.
In around 1601 one William Pureveye complained to Cecil that Denny had attempted to murder him, but the accusation sounds far-fetched and Denny was evidently not prosecuted.
Denny may have sought election to the first Jacobean Parliament for Essex to further the interests of Sir Christopher Hatton* of Ilford, his near neighbour and the heir of his wife’s late brother-in-law, Sir William Hatton alias Newport†. An overseer of Sir William’s will, in June 1604 he was named to the committee for the bill to enable Sir Christopher to convey part of his lands to the Crown.
Although Denny could count on some important backers, his support was less impressive than might at first appear. According to Rich, just one member of the gentry in Hinckford Hundred - Sir Thomas Gardiner - refused to support Barrington. Moreover, Suffolk’s influence in Essex was comparatively slight. Indeed, on 24 Feb. the earl sternly rebuked his tenants at Saffron Walden who, without consulting him, had promised to vote for Barrington rather than ‘my good friend Sir Edward Denny’.
Denny played only a modest role in Parliament’s proceedings, making no recorded speeches. On 7 May he was listed among those who could furnish the House with details regarding the abuses of the royal purveyors.
Shortly after Parliament was prorogued in July 1604, Denny and the king entered into negotiations for a marriage between Denny’s daughter, Honora, and James’s Scottish favourite, Sir James Hay, later 1st earl of Carlisle. Shrewdly, Denny exacted a heavy price, demanding a barony, the grant of lands worth £1,000 p.a., the payment of £3,000 worth of debts and the waiving of rent arrears on various Crown lands. Denny was accordingly elevated to the peerage in October 1604, and so lost his Commons’ seat, but it was not until the end of 1606, after James had conferred both office and title on Hay, that he consented to the marriage.
