Other than his educational record, nothing is known of Edgcumbe’s early life. An unsubstantiated claim that he opposed the Forced Loan may be disregarded, since he was too young in 1627 to qualify as a taxpayer. In the following year, while still a minor, he was returned to Parliament after a disputed election at Newport, on the interest of his uncle, Sir John Speccott*. Another uncle, Ambrose Manaton*, who was also a prominent local landowner, actually voted for him in the contest. More surprisingly, key evidence which led to confirmation of Edgcumbe’s Commons seat on 14 Apr. 1628 was provided by (Sir) John Eliot*, who had successfully stood against Edgcumbe’s father, Sir Richard, in the Cornish shire election. The Parliament’s subsequent records make no mention of the young Member.
In May 1629 Edgcumbe obtained a pass for three years’ foreign travel, and he was probably the ‘Perseus Edsgaimb’ who entered Leiden University in the following month. He almost certainly wrote an anonymous journal preserved in the Edgcumbe papers, which describes a nine-month tour in 1630-1 through France and Spain, countries which Edgcumbe is known to have visited. This continental sojourn concluded with his attendance at Padua University in 1632-3. Edgcumbe’s epitaph subsequently described him as ‘a master of languages and sciences’.
