Greville received what was then considered a comprehensive education, attending
Cambridge University before travelling through Europe from 1624 to 1627. He visited
Paris,
Venice and
Turin but the time spent in the
Calvinist centres of
Leiden and
Geneva seems to have been decisive in instilling his
Puritan views. While in Leiden, he is thought to have met
John Robinson, an advocate of Puritan colonisation of
North America who organised the
Mayflower voyage. This may account for his subsequent involvement in the
Saybrook Colony and
Providence Island Company, of which he became a founder member. in 1628 In
early 1628, he was elected
MP for
Warwick, a session dominated by the struggle over the
Petition of Right. His election was challenged and voided on 31 May but before a
by-election could take place, his adoptive father died on 30 September. Greville inherited his titles and thereafter sat in the
House of Lords. Many contemporaries resented his alleged low social origins, while his religious radicalism also set him apart. Combined with the suspension of Parliament during the 1629 to 1640 period of
Personal Rule, the result was minimal involvement in local politics. Instead, he became part of a national network of Puritan activists, whose projects included establishment of the Providence Company in 1630. He reportedly declared his willingness to fund the entire project in return for control, an offer rejected by
John Pym, the company treasurer. Although the
Providence Island colony never prospered and was captured by the Spanish in May 1641, company meetings provided cover for co-ordinating political opposition. Many members were prominent in the
Parliamentary opposition in 1640, including Pym,
John Hampden,
Francis Rous,
Lord Saye and Sir
William Waller. Despair at the political situation of the 1630s led Greville to contemplate emigration along with many others, including
Oliver Cromwell. To provide a vehicle for this, he and Lord Saye founded the SayeBrooke colony in 1635, an amalgamation of Lord Saye and Lord Brooke. They dropped the idea when their proposed political constitution was rejected by
John Winthrop of
Massachusetts, who insisted only full church members be allowed to vote. Concern over the potential for religious tyranny led Saye and Brooke to reject clerical involvement in civil affairs, the origin of the subsequent split between
Presbyterians such as Pym and
religious Independents like Cromwell. ==Wars of the Three Kingdoms==