
Sorry to be picky on such a good post, but your PM for Baynard's Castle should be about 0.25 miles ESE of where it is now, i.e. just east of Blackfriars station, in between there and the slip road from Upper Thames Street to Queen Victoria Street. Turn on roads and you will see Castle Baynard Street is still there. This is confirmed
here .
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Ken, ex-Glasgow, now Romford/Hornchurch border