HMS Royal Sovereign was one of the royal yachts of King George III. She was the largest of his yachts and served from 1804 until she was broken up in 1849.
The Yacht ('Royal Sovereign') sailing from Portsmouth with Her Royal Highness the Duchess of Clarence on board to view the Russian Squadron. Augt 8th 1827 RMG PU6491
The Mayor and Corporation of Portsmouth, going on board the Yacht ('Royal Sovereign'), with an Address Augt 2d 1827 RMG PU6493 (cropped)
Henry Moses (1782-1870) - The Mayor and Corporation of Portsmouth Going on Board HM Yacht 'Royal Sovereign' with a Loyal Addre - BHC3611 - Royal Museums Greenwich
John Thomas Serres - The 'Royal Sovereign', Yacht (1809)
Henry Moses (1782-1870) - The Yacht 'Royal Sovereign' with the Duchess of Clarence on Board, Leaving Portsmouth to View the Vi - BHC0621 - Royal Museums Greenwich
Visit of William the Fourth when Duke of Clarence, as Lord High Admiral, to Portsmouth Harbour July 31st 1827, with Views of the Russian Squadron, by Henry Moses
The 'Royal Sovereign', Yacht RMG BHC3613
The embarkation of his most Gracious Majesty George the Fourth at Greenwich, August 10th, 1822 for Scotland. Lord Mayor's Barge, Royal George, Royal Sovereign. The James Watts Steam Boat