The National Gallery’s announcement of a new wing and more modern art–enabled by an unprecedented £375 million fund–promises to reignite a historic rivalry with Tate. Will Hosie investigates

Exhibition of the week William Nicholson Pallant House ...

Turner is on our banknotes, Constable in our hearts

The piece I’d never part with

Leigh Lawson has embraced acting and poetry with the same determination that sustained Marie Lloyd, the music-hall queen whose memorabilia he collects, as Carla Passino discovers

One of the architectural wonders of Wales, this 17th-century brick property was home to the influential Morgan family for over 500 years, and houses stories of eccentricity and rebellion