Sir Edward Denny held the office of Member of Parliament (M.P.) for Liskeard in 1584.1 He was Gentleman of the Privy Chamber to Queen Elizabeth I.1 He held the office of Member of Parliament (M.P.) for Tregony in 1587.1 He held the office of High Sheriff of County Kerry in 1588.1 He was invested as a Knight in 1589.1 He served against the Earl of Desmond and the Irish and the Spaniards in Ireland and was granted 6,000 acres of Desmond's forfeited estates, including the town and the Earl's chief castle of Tralee.1 He was invested as a Knight, Order of the Bath (K.B.).1 He lived at Stortford Manor, Hertfordshire, England
The mediaeval town of Tralee was burnt in 1580 in retribution for the Desmond Rebellions against Elizabeth I. Tralee was granted to Edward Denny by Elizabeth I in 1587 and recognised by royal charter in 1613. Sir Edward was the first of the Dennys to settle in Tralee and we learn from a recent history of Tralee by Gerald O'Carroll that only in 1627 did the Dennys actually occupy the castle of the earls of Desmond.