City of Westminster, England

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1016
King Canute begins building a royal residence on Thorney Island where the Palace of Westminster now stands.
1220
King Henry III redesigns the Queen's Chapel, Queen's Chamber and King's Chamber (later known as the Painted Chamber) in the Palace of Westminster.
1220
The Exchequer (finance department) moves from Winchester to the Palace of Westminster in London.
1292
Edward I begins constructing St. Stephen's Chapel and the Chapel of St Mary Undercroft in the Palace of Westminster.
1512
Westminster Palace becomes the permanent home of the Houses of Parliament after King Henry VIII abandons it in favor of the nearby Palace of Whitehall
25 Jan 1533
King Henry VIII marries Anne Boleyn at Whitehall Palace, London. As the pope had not granted a divorce from his first wife, the marriage leads to Henry's excommunication and eventual break with the Roman Catholic church.
30 May 1536
Henry VIII marries Jane Seymour at Whitehall
28 Jan 1547
King Henry VIII dies at Whitehall Palace, London, at the age of 55. He is buried in St. George's Chapel at Windsor Castle.
5 Nov 1605
Failure of the Gunpowder Plot in London
1649
Charles I Condemned
30 Jan 1649
King Charles I is executed in front of the Banqueting House at Whitehall Palace, London.
1705
A house is built in London for John Sheffield, Duke of Buckingham. It will eventually be transformed into Buckingham Palace.
1717
Sir Christopher Wren alters the Commons Chamber of the Houses of Parliament to accommodate new Scottish MPs following the Union.
1761
George III buys Buckingham House, renames it Queen's House for his wife
1826
George IV decides to transform Buckingham House into a royal palace. Parliament approves a budget of £150,000 and the royal architect John Nash sets to work on major expansions and renovations, which include the State Rooms of Buckingham Palace that are
1827
Carlton House, George IV's London residence before his coronation, is demolished. Its artworks and furnishings are brought to Buckingham Palace.
1832-38
Construction of the National Gallery in London
7 Jun 1832
The Reform Act
1835
A Parliamentary Committee concludes that the Palace of Westminster should be rebuilt in the Gothic or Elizabethan style and opens a design competition. This is won by the architect Charles Barry, who chose the Gothic style.
1840
Construction begins on new Palace of Westminster in Gothic Revival style
1840
Under the direction of Queen Victoria, Buckingham Palace is expanded to provide more room for children and bedrooms for visitors. Architect Edward Blore and his builder Thomas Cubitt add an east wing, creating a quadrangle. The cost of the work, £10
1852
The Commons Chamber of the Houses of Parliament is completed and its architect, Charles Barry, is knighted.
1852
Constitution Act
1860
Victoria Tower is completed.
1870
Reconstruction of Palace of Westminster completed
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