Cowper was educated at
St Albans School in Hertfordshire, and was later to acquire a country estate in the county and represent the county town in Parliament. He was admitted to
Middle Temple on 18 March 1681/82, was
called to the bar on 25 May 1688, and built up a large practice. He gave his allegiance to the
Prince of Orange on his landing in England in 1688, and was made
King's Counsel and
recorder of
Colchester in 1694. Cowper had the reputation of being one of the most effective parliamentary orators of his generation. He lost his seat in parliament in 1702 owing to the unpopularity caused by the trial of his brother
Spencer Cowper on a charge of murder.
Lord Keeper of the Great Seal On 11 October 1705 he was sworn to the
Privy Council, was appointed
Lord Keeper of the Great Seal, and took his seat on the
woolsack without a peerage. In the following year he conducted the negotiations between the English and Scottish commissioners for arranging the union with Scotland. In November of that year he succeeded to his father's baronetcy, and on 14 December 1706, he was raised to the peerage as
Baron Cowper of Wingham, Kent.
Lord High Chancellor When the union with Scotland came into operation in May 1707 the Queen in Council named Cowper
Lord High Chancellor of Great Britain, he being the first to hold this office. He presided at the trial of
Dr Sacheverell in 1710, but resigned the seal when
Harley and
Bolingbroke took office in the same year. and though she was reluctantly persuaded to accept his resignation, continued to consult him unofficially for the remainder of her reign. On the death of
Queen Anne,
George I appointed Cowper one of the Lords Justice for governing the country during the king's absence, and a few weeks later he again became Lord Chancellor.
Lord High Steward A paper which Cowper drew up for the guidance of the new king on constitutional matters, entitled
An Impartial History of Parties, marks the advance of English opinion towards party government in the modern sense. It was published by Lord Campbell in his
Lives of the Lord Chancellors. Cowper supported the impeachment of
Lord Oxford for
high treason in 1715, and in 1716 presided as
Lord High Steward at the trials of the peers charged with complicity in the
Jacobite rising, his sentences on whom have been censured as unnecessarily severe. He warmly supported the
Septennial Bill in the same year.
Viscount Fordwich and Earl Cowper On 18 March 1718 he was created
Viscount Fordwich and
Earl Cowper, and a month later he resigned office on the plea of ill-health, but probably in reality because George I accused him of espousing the
Prince of Wales's side in the prince's quarrel with the king. Taking the lead against his former colleagues, Cowper opposed the proposed
Peerage Bill brought forward in 1719 to limit the number of peers, and also opposed the
bill of attainder against
Atterbury in 1723. Cowper was not a great lawyer, but Burnet says that he managed the
Court of Chancery with impartial justice and great despatch; the most eminent of his contemporaries agreed in extolling his oratory and his virtues. It is notable that Queen Anne, despite her prejudice against the
Whigs in general, came to have great respect and liking for Cowper, and continued to seek his advice even after he left office as Lord Chancellor. ==Trial of Spencer Cowper==