Penn was appointed a Commissioner of the Navy Board where he worked with Pepys, Clerk of the Acts. The character of "mean fellow", or "false knave", given him by Pepys is borne out by much that is otherwise known of him. But it is no less certain that he was an excellent seaman and a good fighter. Like Pepys and the Earl of Sandwich (Pepys' patron at the Navy Board) Penn was a "moderate" Roundhead who had succeeded in maintaining his position at the Restoration. Unsurprisingly, Penn appears several times in Pepys diary. A typical entry (5 April 1666) reads "To the office, where the falsenesse and impertinencies of Sir W. Pen would make a man mad to think of." But he is referenced perhaps most vividly in an entry for 1665, which states: "At night home and up to the leads [roof], were contrary to expectation driven down again with a stinke by Sir W. Pen's shying of a shitten pot in their house of office". On the other hand, the diary entry for 4 July 1666 contains a long account of Penn's analysis of what was to be learnt from the Four Days' Battle, ending with the statement: "He did talk very rationally to me, insomuch that I took more pleasure this night in hearing him discourse then I ever did in my life in anything that he said." As a native of the West Country, Sir William Penn is buried in the church of St Mary Redcliffe in Bristol. His helm and half-armour are hung on the wall, together with the tattered banners of Dutch ships that he captured in battle. His portrait by Lely, part of the Flagmen of Lowestoft series, is in the Painted Hall at Greenwich. After his death, his son, William, accepted the grant of land in the American colonies in lieu of money owed by the Crown to his father. William Penn had wanted to call the land "New Wales", which was objected to by the Secretary of State, Privy Council member and Welshman Leoline Jenkins. Penn instead put forward the name "Sylvania". The Council then chose to tweak this new name a bit by adding the prefix "Penn" to honour the late Admiral, William Penn's father. After some protestation from William Penn, he reluctantly accepted it. Personal life On 6 June 1643, he married Margaret Jasper, a daughter of John Jasper,