It is interesting to see pubs described (Like the Old Man and Scythe) as the 4th oldest in England. This parochial attitude is always taken by the aggressors (the English), The quoted history for The Old Man... says it dates back to "at least 1236"
Wales' oldest inn, "The Skirrid" is recorded back to 1110.
Fifty years after the Norman conquest, two men stood trial before a court assembled in the main room of a new alehouse on a dusty road below the Skirrid mountain. The alehouse was then called 'Millbrook'. One of the men (brothers) was hanged from a beam of the inn for sheep stealing.

Claims for "The Trip To Jerusalem" date it to 1070
The Fighting Cocks at St Albans is said to be 11th century, on an 8th century site.
The Bingley Arms, at Bardsey (near Leeds) is said to be the inn recorded as the 'Priests Inn' (AD 905)
And "Ye Olde Ferry Boat Inn" at Holywell, Cambridgeshire has a claim dating back to the 6th century.

I would be very interested in further details on these and others! Nigel