Charles Gregory ( 1810 - 1896 ) was a British painter. Charles Gregory s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 699.95 USD for A frigate lying off the covered slips at Devonport in 2004 to 12484.79 USD for The Royal Yacht Squadron's Viking at anchor off Cowes in 2019 , based on the size and medium of the artwork.