Thank TK, I knew about the butchers bit but did not know the meaning today came from the battlefield.
Found a translation for the Latin. -
'This market colonnade, together with the provision markets placed on both sides and the fish market at the rear was brought forward entirely at the cost of gentlemen from the county as well as inhabitants of the town for public use and ornament. Let it be said that this work, begun under the auspices of Charles Turner Mayor in the year 1707, was finished by John Berny, Mayor in 1710, by Henry Bell, architect.'
