But no systematic exploration was attempted until the British Admiralty undertook a thorough survey of the whole group by Philip Parker King (1826-1828) and Robert Fitzroy (1831-1836).
He found a patron in Mary Fitzroy, duchess of Richmond, and having been ordained deacon by Ridley in 1550, he settled at Reigate Castle, where he acted as tutor to the duchess's nephews, the orphan children of Henry Howard, earl of Surrey.
By Barbara Villiers, Mrs Palmer, afterwards countess of Castlemaine and duchess of Cleveland, mistress en titre till she was superseded by the duchess of Portsmouth, he had Charles Fitzroy, duke of Southampton and Cleveland, Henry Fitzroy, duke of Grafton, George Fitzroy, duke of Northumberland, Anne, countess of Sussex, Charlotte, countess of Lichfield, and Barbara, a nun; by Louise de Keroualle, duchess of Portsmouth, Charles Lennox, duke of Richmond; by Lucy Walter, James, duke of Monmouth and Buccleuch, and a daughter; by Nell Gwyn, Charles Beauclerk, duke of St Albans, and James Beauclerk; by Catherine Peg, Charles Fitz Charles, earl of Plymouth; by Lady Shannon, Charlotte, countess of Yarmouth; by Mary Davis, Mary Tudor, countess of Derwentwater.
After the great earthquake of 1835 Captain Robert FitzRoy (1805-1865) of H.M.S.
The existence of such a channel was considered probable when these inland waters were first explored in 1829 by Captain FitzRoy, but it was not discovered and surveyed until three-quarters of a century had elapsed.