Banqueting House in the context of "The Somerset Masque"

The Palace of Whitehall – also spelled White Hall – at Westminster was the main residence of the English monarchs from 1530 until 1698, when most of its structures, with the notable exception of Inigo Jones's Banqueting House of 1622, were destroyed by fire. Henry VIII moved the royal residence to Whitehall after the old royal apartments at the nearby Palace of Westminster were themselves destroyed by fire. Although the Whitehall palace has not survived, the area where it was located is still called Whitehall and has remained a centre of the British government.

Whitehall was at one time the largest palace in Europe, with more than 1,500 rooms, before itself being overtaken by the expanding Palace of Versailles, which was to reach 2,400 rooms. At its most expansive, the palace extended over much of the area bordered by Northumberland Avenue in the north; to Downing Street and nearly to Derby Gate in the south; and from roughly the elevations of the current buildings facing Horse Guards Road in the west, to the then banks of the River Thames in the east (the construction of Victoria Embankment has since reclaimed more land from the Thames)—a total of about 23 acres (9.3 ha). It was about 710 yards (650 m) from Westminster Abbey.

Charles I, King of England, Scotland and Ireland, was publicly executed on 30 January 1649 outside the Banqueting House on Whitehall, London. The execution was the culmination of political and military conflicts between the royalists and the parliamentarians in England during the English Civil War, leading to Charles's capture and his trial. On 27 January 1649 the parliamentarian High Court of Justice had declared Charles guilty of attempting to "uphold in himself an unlimited and tyrannical power to rule according to his will, and to overthrow the rights and liberties of the people" and sentenced him to death by beheading.

Charles spent his last few days in St James's Palace, accompanied by his most loyal subjects and visited by his family. On 30 January he was taken to a large black scaffold constructed in front of the Banqueting House, where a large crowd had gathered. Charles stepped onto the scaffold and gave his last speech, declaring his innocence of the crimes of which parliament had accused him, and claiming himself a "martyr of the people". The crowd could not hear the speech, owing to the many parliamentarian guards blocking the scaffold, but Charles's companion, Bishop William Juxon, recorded it in shorthand. Charles gave a few last words to Juxon, claiming an "incorruptible crown" for himself in Heaven, and put his head on the block. He waited a few moments, and after giving a signal that he was ready, the anonymous executioner beheaded Charles with a single blow and held Charles's head up to the crowd silently, dropping it into the swarm of soldiers soon after.