London - Their £95 million acquisition of 'Princess Diana In Acton' and a companion picture 'Princess Di And Callista Gingrich' has wowed the art world.
Curatorial sources at the Gallery said today it's saved the masterpieces from spoofing 'some dosh-rich foreign gallery' like the Guggenheim or MOMA.
This morning the magnificent pair were displayed together in public for the first time as Titian connoisseurs marvelled at the pics' rampant eroticism and nudity featuring Diana, goddess of the hunt (sic) casting out 'some pregnant nymph'.
A close-up shows that fecund, usurping ho's uncanny resemblance to Camilla, Duchess of Cornwall and the 'grotto' where Titian placed his Diana as remarkably similar to Apartments 8 and 9 at Kensington Palace.
"Not for nothing was the painter known as Tit-ian, heheh," one art critic commented, "those nudes have some really awesome stonkers!"
National staff tend to agree and are expressing some astonishment at the grand master's foresight.
"Boy, was that Titian prescient," Gallery warden Archie Gouache tweeted at lunchtime, "getting Princess Di to take her kit off 200 years before her actual incarnation.
"Wanna see pix of Lucien Fraud honing his brushstrokes on a partly nude Kate Middleton?"