Sir Francis Pemberton (18 July 1624 – 10 June 1697) was an English judge and briefly Lord Chief Justice of the King's Bench in the course of a turbulent career. Early life He was born on 18 July 1624 at St Albans, the son and heir of a former London merchant, Ralph Pemberton, mayor of St. Albans, in 1627 and 1638, by his wife, Frances, daughter of Francis Kempe. His grandfather was Roger Pemberton of Hertfordbury, of an old Lancashire family. Francis was educated at St Albans School and Emmanuel College, Cambridge. As a young man, he fell into dissolute company and acquired extravagant habits, leading to his imprisonment in the Fleet for debt. On 14 October 1645, he was admitted a member of the Inner Temple. There, he applied himself diligently to the study of the law and, having eventually secured his release, he was called to the Bar on 27 November 1654. Family In 1667, Pemberton married Anne Whichcote, the daughter of Jeremy Whichcote, Warden of Fleet Prison. They had numerous children, as his memorial in Highgate chapel records. Early career Pemberton rapidly acquired a substantial practice and was regularly retained by the Government in important criminal cases. In 1675 he was called to the degree of Sergeant-at-law and was thereafter regarded as the foremost advocate of his day. Appearing at the bar of the House of Lords to argue an appeal to which some members of the House of Commons were respondents, Pemberton inadvertently triggered a constitutional struggle for supremacy between the two Houses of Parliament. The House of Commons had resolved that it would be a breach of their privileges for any lawyer to act in the appeal and ordered that he should be taken into custody. The House of Lords thereupon ordered his release. The resulting tug-of-war ended only when King Charles II intervened and Pemberton was set free. Judicial career On 30 April 1679 Pemberton was appointed a puisne judge. Having offended the Government by his conduct in relation to the Popish Plot, he was dismissed within two years, whereupon he returned to his practice at the bar. However, he rapidly returned to favour and was appointed Lord Chief Justice of the King's Bench on 11 April 1681. In the same year, he presided over the trumped-up trial of Oliver Plunkett, the Primate of the Catholic Church in Ireland, who was wrongly convicted of