The Rashleighs arrived in Fowey in the early sixteenth century. Philip Rashleigh, a merchant’s son from Barnstaple, Devon, purchased the former monastic manor of Trenant, near Fowey, where his eldest son established the minor gentry line to which Robert Rashleigh* belonged.
Following spells at university and the Middle Temple, Rashleigh rounded off his education by serving in the 1614 Parliament as Member for Fowey. Although he does not appear by name in the records of this Parliament, he was entitled, as the representative of a Cornish port town, to attend six bill committees, whose subjects included the export of iron ordnance (11 May), the preservation of fish fry (21 May) and extortions by customs officials (25 May).
Rashleigh had been granted the legal reversion of his father’s estates as early as 1609, on account of his elder brother’s mental incapacity. In the event, in May 1624 Rashleigh’s father predeceased his first-born son by barely a week, and Rashleigh entered into a substantial inheritance which included four manors, property in 24 Cornish parishes and the Devon town of Plymouth, and nearly £3,500 in bullion.
Rashleigh reasserted his political dominance over Fowey at the 1625 election, taking one seat for himself and handing the other to his brother-in-law, Arthur Bassett. No record survives of Rashleigh’s activities during this Parliament, and he did not seek election again until 1640. During the early years of Charles’s reign, it is likely that he was critical of government policy. His cousin Sir Francis Godolphin* approached him hesitantly when requesting his contribution to the 1625 Privy Seal loan,
Rashleigh initially refused to compound for knighthood, and paid £70 only after the Privy Council proceeded against him in 1633.
