When was London's National Portrait Gallery opened?

The National Portrait Gallery (NPG) is an art gallery in London housing a collection of portraits of historically important and famous British people. It was the first portrait gallery in the world when it opened in 1856. The gallery moved in 1896 to its current site at St Martin's Place, off Trafalgar Square, and adjoining the National Gallery. It has been expanded twice since then. The National Portrait Gallery also has regional outposts at Beningbrough Hall in Yorkshire and Montacute House in Somerset. It is unconnected to the Scottish National Portrait Gallery in Edinburgh, with which its remit overlaps. The gallery is a non-departmental public body sponsored by the Department for Culture, Media and Sport.

The gallery houses portraits of historically important and famous British people, selected on the basis of the significance of the sitter, not that of the artist. The collection includes photographs and caricatures as well as paintings, drawings and sculpture. One of its best-known images is the Chandos portrait, the most famous portrait of William Shakespeare although there is some uncertainty about whether the painting actually is of the playwright.