Maidenhead is a town and unparished area within the Royal Borough of Windsor and Maidenhead, in Berkshire, England. It lies on the River Thames and is situated 25.7 miles (41.4 km) west of Charing Cross in London....King Charles I met his children for the last time before his execution in 1649 at the Greyhound Inn on the High Street, the site of which is now a branch of the NatWest Bank. A plaque commemorates their meeting. http://en.wikipedia.org/wiki/Maidenhead
The overlays that highlight 17th century London features are approximate and derived from Wenceslaus Hollar’s maps:
Open location in Google Maps: 51.522751, -0.720209
Chart showing the number of references in each month of the diary’s entries.