Early life
Francis Bacon was born at York House Strand, London. He was the youngest of five sons of Sir Nicholas Bacon, Lord Keeper of the Great Seal under Elizabeth I. His mother, Ann Cooke Bacon was the second wife of Sir Nicholas, a member of the Reformed or Puritan Church, and a daughter of Sir Anthony Cooke, whose sister married William Cecil, Lord Burghley, the great minister of Queen Elizabeth.

Biographers believe that Bacon received an education at home in his early years, and that his health during that time, as later, was delicate. He entered Trinity College, Cambridge, in 1573 at the age of 12, living for three years there with his older brother Anthony Bacon.

At Cambridge he first met the Queen, who was impressed by his precocious intellect, and was accustomed to call him "the young Lord Keeper." Here also his studies of science brought him to the conclusion that the methods (and thus the results) were erroneous. His reverence for Aristotle conflicted with his dislike of Aristotelian philosophy, which seemed barren, disputatious, and wrong in its objectives.

On June 27, 1576, he and Anthony were entered de societate magistrorum at Gray's Inn, and a few months later they went abroad with Sir Amias Paulet, the English ambassador at Paris. The disturbed state of government and society in France under Henry III afforded him valuable political instruction.

The sudden death of his father in February 1579 necessitated Bacon's return to England, and seriously influenced his fortunes. Sir Nicholas had laid up a considerable sum of money to purchase an estate for his youngest son, but he died before doing so, and Francis was left with only a fifth of that money. Having started with insufficient means, he borrowed money and became habitually in debt. To support himself, he took up his residence in law at Gray's Inn in 1579.

Career
In the fragment De Interpretatione Naturae Prooemium (written probably about 1603) Bacon analyses his own mental character and establishes his goals, which were threefold: discovery of truth, service to his country, and service to the church. Knowing that a prestigious post would aid him toward these ends, in 1580 he applied, through his uncle, Lord Burghley, for a post at court which might enable him to devote himself to a life of learning.

His application failed, and for the next two years he worked quietly at Gray's Inn giving himself seriously to the study of law, until admitted as an outer barrister in 1582. In 1584 he took his seat in parliament for Melcombe in Dorset, and subsequently for Taunton (1586). He wrote on the condition of parties in the church, and he set down his thoughts on philosophical reform in the lost tract, Temporis Partus Maximus, but he failed to obtain a position of the kind he thought necessary for success.

In the Parliament of 1586 he took a prominent part in urging the execution of Mary Queen of Scots. About this time he seems again to have approached his powerful uncle, the result of which may possibly be traced in his rapid progress at the Bar, and in his receiving, in 1589, the reversion to the Clerkship of the Star Chamber, a valuable appointment, the enjoyment of which, however, he did not enter into until 1608.

During this period Bacon became acquainted with Robert Devereux, 2nd Earl of Essex (1567-1601), Queen Elizabeth's favourite. By 1591 he was acting as the earl's confidential adviser. Bacon took his seat for Middlesex when in February 1593 Elizabeth called a Parliament to investigate a Catholic plot against her. His opposition to a bill that would levy triple subsidies in half the usual time (he objected to the time span) offended many people; he was accused of seeking popularity, and was for a time excluded from the court.

When the Attorney-Generalship fell vacant in 1594 and Bacon became a candidate for the office, Lord Essex's influence could not secure him the position; in fashion, Bacon failed to become solicitor in 1595. To console him for these disappointments Essex presented him with a property at Twickenham, which he subsequently sold for £1800, equivalent to a much larger sum now.

In 1596 he was made a Queen's Counsel, but missed the appointment of Master of the Rolls. During the next few years, his financial situation remained bad. His friends could find no public office for him, a scheme for retrieving his position by a marriage with the wealthy widow Lady Elizabeth Hatton failed, and in 1598 he was arrested for debt. His standing in the queen's eyes, however, was beginning to improve. She had begun to employ him in crown affairs a few years previously, and he gradually acquired the standing of one of the learned counsel, though he had no commission or warrant and received no salary.

His relationship with the queen also improved when he severed ties with Essex, a fortunate move considering that the latter would be executed for treason in 1601; and Bacon was one of those appointed to investigate the charges against him, and examine witnesses, in connection with which he showed an ungrateful and indecent eagerness in pressing the case against his former friend and benefactor. This act Bacon endeavoured to justify in A Declaration of the Practices and Treasons, etc., of ... the Earl of Essex, etc. He received a gift of a fine of £1200 on one of Essex's accomplices.

The accession of James I brought Bacon into greater favour; he was knighted in 1603, and endeavoured to set himself right with the new powers by writing his Apologie (defence) of his proceedings in the case of Essex, who had favoured the succession of James. In the course of the uneventful first parliament session Bacon married Alice Barnham, the daughter of a well-connected London alderman. Little or nothing is known of their married life. In his last will he disinherited her.

However, substantial evidence suggests that Bacon's emotional interests lay elsewhere. John Aubrey in his Brief Lives states that Bacon was "a pederast". Bacon's fellow parliamentary member Sir Simonds D'Ewes in his Autobiography and Correspondence writes of Bacon: "yet would he not relinquish the practice of his most horrible & secret sinne of sodomie, keeping still one Godrick, a verie effeminate faced youth, to bee his catamite and bedfellow".

Bacon's mother Lady Ann Bacon expressed clear exasperation with what she believed was her son's behaviour. In a letter to her other son Anthony, she complains of another of Francis's companions "that bloody Percy" whom, she writes, he kept "yea as a coach companion and a bed companion" ("coach companion" in Bacon's day carried louche connotations, as the interior of a traveling coach was one of the few places affording privacy). Bacon exhibited a strong penchant for young Welsh serving-men. One such person, Francis Edney, received the enormous sum of two hundred pounds in Bacon's will.

Meanwhile (in 1608), he had entered upon the Clerkship of the Star Chamber, and was in the enjoyment of a large income; but old debts and present extravagance kept him embarrassed, and he endeavoured to obtain further promotion and wealth by supporting the king in his arbitrary policy.

However, Bacon's services were rewarded in June 1607 with the office of Solicitor. In 1610 the famous fourth parliament of James met. Despite Bacon's advice to him, James and the Commons found themselves frequently at odds over royal prerogatives and the king's embarrassing extravagance, and the House was dissolved in February 1611. Through this Bacon managed in frequent debate to uphold the prerogative, while retaining the confidence of the Commons.

In 1613, Bacon was finally able to become attorney-general, by dint of advising the king to shuffle judicial appointments; and in this capacity he would prosecute Somerset in 1616. The parliament of April 1614 objected to Bacon's presence in the seat for Cambridge—he was allowed to stay, but a law was passed that forbade the attorney-general to sit in parliament—and to the various royal plans which Bacon had supported. His obvious influence over the king inspired resentment or apprehension in many of his peers.

Bacon continued to receive the King's favor, and in 1618 was appointed by James to the position of Lord Chancellor. In his great office Bacon showed a failure of character in striking contrast with the majesty of his intellect. He was corrupt alike politically and judicially, and now the hour of retribution arrived. His public career ended in disgrace in 1621 when, after having fallen into debt, a Parliamentary Committee on the administration of the law charged him with corruption under 23 counts; and so clear was the evidence that he made no attempt at defence.

To the lords, who sent a committee to inquire whether the confession was really his, he replied, "My lords, it is my act, my hand, and my heart; I beseech your lordships to be merciful to a broken reed." He was sentenced to a fine of £40,000, remitted by the king, to be committed to the Tower during the king's pleasure (which was that he should be released in a few days), and to be incapable of holding office or sitting in parliament. He narrowly escaped being deprived of his titles. Thenceforth he devoted himself to study and writing.

However, Nieves Mathews in her book, Francis Bacon: The History of a Character Assassination (1996, Yale University Press) alleges that Bacon was completely innocent of the bribery charges and that writers from later times were themselves guilty of slandering Bacon's reputation. Bacon commenting on his impeachment as Chancellor in which he claims to have been forced to plead guilty to bribery charges in order to save King James from a political scandal stated:

I was the justest judge, that was in England these last fifty years. When the book of all hearts is opened, I trust I shall not be found to have the troubled fountain of a corrupt heart. I know I have clean hands and a clean heart. I am as innocent of bribes as any born on St. Innocents Day.

Death
The supposed cause of Bacon's death is notoriously comic. In March, 1626, he came to London, and shortly after, when driving on a snowy day, he was inspired by the possibility of using snow to preserve meat. Bacon purchased a chicken (fowl) to investigate this possibility, but, during the endeavour of stuffing it with snow, contracted a fatal case of pneumonia. He died at Highgate on 9 April 1626, leaving assets of about £7,000 and debts to the amount of £22,000.

Works and philosophy
Bacon's works include his Essays, as well as the Colours of Good and Evil and the Meditationes Sacrae, all published in 1597. His famous aphorism, "knowledge is power", is found in the Meditations. Bacon also wrote In felicem memoriam Elizabethae, a eulogy for the queen written in 1609 and various philosophical works which constitute the fragmentary and incomplete Instauratio magna, the most important part of which is the Novum Organum (published 1620). Bacon also wrote the "Astrologia Sana" and expressed his belief that stars had physical effects on the planet.

Bacon did not propose an actual philosophy, but rather a method of developing philosophy; he wrote that, whilst philosophy at the time used the deductive syllogism to interpret nature, the philosopher should instead proceed through inductive reasoning from fact to axiom to law. Before beginning this induction, the inquirer is to free his mind from certain false notions or tendencies which distort the truth. These are called "Idols" (idola), and are of four kinds: "Idols of the Tribe" (idola tribus), which are common to the race; "Idols of the Den" (idola specus), which are peculiar to the individual; "Idols of the Marketplace" (idola fori), coming from the misuse of language; and "Idols of the Theater" (idola theatri), which result from an abuse of authority. The end of induction is the discovery of forms, the ways in which natural phenomena occur, the causes from which they proceed. Bacon's developments of the inductive philosophy would revolutionize the future thought of the human race.

Bacon's somewhat fragmentary ethical system, derived through use of his methods, is explicated in the seventh and eighth books of his De augmentis scientiarum (1623). He distinguishes between duty to the community, an ethical matter, and duty to God, a purely religious matter. Any moral action is the action of the human will, which is governed by reason and spurred on by the passions; habit is what aids men in directing their will toward the good. No universal rules can be made, as both situations and men's characters differ.

Bacon distinctly separated religion and philosophy, though the two can coexist. Where philosophy is based on reason, faith is based on revelation, and therefore irrational—in De augmentis he writes that "[t]he more discordant, therefore, and incredible, the divine mystery is, the more honor is shown to God in believing it, and the nobler is the victory of faith."

Posthumous reputation
Bacon's ideas about the improvement of the human lot were never influential in the 1640s and 1650s among a number of Parliamentarian scholars. In the Restoration Bacon was commonly invoked as a guiding spirit of the new-founded Royal Society. In the nineteenth century his emphasis on induction was revived and developed by William Whewell, among others.

Bacon was ranked #90 on Michael H. Hart's list of the most influential figures in history.

Bacon and Shakespeare
Since the nineteenth and twentieth centuries a number of writers extended Bacon's acknowledged body of work by claiming that Bacon was the author of the plays usually attributed to William Shakespeare. There is disputed evidence for this via Bacon's Shakespeare notebook, The Promus and The Northumberland Manuscript.