The Royal Burgh of Haddington is a town in East Lothian, Scotland. It is the main administrative, cultural and geographical centre for East Lothian, which as a result of late-nineteenth century Scottish local government reforms took the form of the county of Haddingtonshire for the period from 1889 to 1921. It lies about 17 miles east of Edinburgh. The name Haddington is Anglo-Saxon, dating from the sixth or seventh century AD when the area was incorporated into the kingdom of Bernicia. The town, like the rest of the Lothian region, was ceded by King Edgar of England and became part of Scotland in the tenth century. Haddington received burghal status, one of the earliest to do so, during the reign of David I, giving it trading rights which encouraged its growth into a market town.
Today, Haddington is a small town with a population of fewer than 10,000 people. But during the High Middle Ages it was the fourth-biggest town in Scotland.
Wikipedia https://en.wikipedia.org/wiki/Haddington,_East_Lothian
Coordinates 55°57'20.212" N -2°46'45.541" E