A younger son of the famously wealthy Spencer family of Althorp, Spencer and his younger brother joined their two elder brothers at Oxford, though at a different college, studying at Corpus Christi under Thomas Jackson, a leading Arminian divine.
Spencer was elected as senior burgess for Northampton in 1620, together with Thomas Crewe, a lawyer resident at Steane in the south of the county, both of whom were described as gentlemen ‘of good descent and efficiency’, and sworn freemen without charge.
Spencer was re-elected for Northampton in every subsequent Parliament of the 1620s, but a new recorder meant that he now settled for the second seat. In 1624 Spencer’s only committee appointment before the Easter recess was to investigate Exchequer abuses (26 February).
In the first Caroline Parliament, Spencer was among those appointed to manage the conference on the fast (23 June), to prepare heads for an address on religion in response to Montagu’s latest book (24 June), to consider a bill to mitigate excommunication (27 June), and to hear a petition against impositions on wine (29 June).
At the general election of 1626 Spencer assured Lord Montagu of Boughton that he had done all he could to persuade the Northampton corporation to endorse Sir Lewis Watson* for a county seat, but had found them firmly resolved on his own brother, (Sir) William.
As one of those instructed to prepare for a debate on shipping, on 25 Feb. Spencer maintained that the decay of the Navy had been caused not by lack of funds, but by their misuse.
Spencer insisted on deferring any discussion of supply until a proper financial statement had been presented. ‘Unless the king’s reverence be laid open to us’, he said on 10 Mar., ‘we shall walk as blind men’, a point he repeated several times in subsequent debates.
The turning point of the session came for Spencer on 27 Apr., once he learnt that Buckingham was prepared to champion Arminianism. After the duke had been accused of a ‘transcendent presumption of dangerous consequence’ in interfering with the medical treatment of the late king in his last illness, Spencer acted as teller against the House forming into an immediate grand committee, but the division was lost and the committee went ahead.
Spencer chaired to committee of a naturalization bill for the four sons of Sir Jacob Astley (11 May), which he reported on 6 June.
Spencer inherited £2,500 on his father’s death in 1627. Shortly afterwards he married the daughter of Sir Edwin Sandys, whose religious and political outlook he shared, and settled in Kent.
On 26 Mar. he moved for a debate on arbitrary imprisonment, gave the example of the Proclamation of 20 Nov. 1622 enjoining gentlemen to return to their estates and keep hospitality as an example in which certain kinds of confinement could be justified.
In the supply debate of 2 Apr. he argued as he had in 1626 for a radical approach, declaring ‘the king’s revenue is out of order, and till that be settled, which must be dowered by this House, we shall find the arrears the next year as great as now they are’. He also made clear the necessity of debating the matter before consideration of subsidies. ‘Heretofore it was not expected that the subjects should supply all, but that the revenues of the Crown should bear a great part’. The failure to rectify this problem, he indicated, would have grave consequences: ‘it was promised the last Parliament, when we gave three subsidies and three fifteenths, that the ports should first be repaired, and I fear now they are in as ill case as ever’.
In response to Secretary Coke’s message the following day, warning the Commons not to encroach upon the powers of the king, Spencer demanded an explanation of what ‘power’ this referred to; but he received only an evasive answer.
In the debate on the bill against the purchase of judicial offices (23 Apr.), a measure initiated by Sherland in 1626, Spencer argued that judges did not usually buy their places, and he was the first named to the bill committee.
As chairman of the committee to consider the grievances of the Levant merchants (10 May), he reported inaccurately on 17 May that impositions on currants amounted to 26 per cent of the selling price, and accused Exchequer officers of passing the buck so that importers could receive no redress. The privy councillors in the House were therefore ordered to request the king to restore the confiscated goods.
When the Lords desired a conference on 23 May on the difference between the Houses over the Petition of Right, Spencer was ordered to tell them that the Commons would consider their reply on the following day.
On 14 June he spoke against the clause in the Remonstrance referring to alterations in religion, which provoked (Sir) Nathaniel Rich* to reply that he was sorry to see any Member countenancing Arminianism.
On 10 July 1628 a warrant was issued to pay Spencer £4 a day as ambassador to the United Provinces, and a fortnight later his departure was reported to be imminent.
In May 1629 Spencer was offered the post of ambassador to Venice, but managed to delay his departure for three years until the appointment was again rescinded.
