Art and antiques from Castle Howard, the setting for the 1980s TV adaptation of Brideshead Revisited, are to cross the block at Sotheby's London on July 8.
It's expected to auction for a combined £10m ($14.8m).
Included is a work by Venetian view painter Bernardo Bellotto, nephew of the legendary Canaletto. It's valued at £3.5m ($5.1m).
Nicholas Howard, one of the current custodians of the house, commented: "We have selected for sale at Sotheby's a small number of works which, while of great intrinsic interest, have been carefully chosen so as not to detract from the overall integrity of the collection."
Henry Wyndham, chairman of Sotheby's Europe, explained that the collection is one of the finest ever assembled: "The collections at Castle Howard chart two millennia of history and 300 years of collecting.
"The carefully selected group of works to be auctioned this summer is testament to the taste of a series of enlightened art patrons, starting with the visionary 3rd Earl of Carlisle, and continuing through his Romanophile son, Henry, collector of antiquities and Venetian vedute, to his diplomat grandson Frederick, 5th Earl of Carlisle, who is thought by many to have been the most refined English collector of the period around 1800."
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