Roslin (also spelled Rosslyn) is a small village on the banks of the North Esk River about 12 miles south of Edinburgh. It is best known for its ruined castle and chapel or collegiate church of St. Matthew. The oldest part of the castle - the keep - was built in the 14th Century by a man named Henry Sinclair of Orkney on a rocky ledge jutting into a loop of the river which winds round the castle on three sides.

The chapel was established by Henry's son, William, in 1447, a short distance from the castle on the site of a former chapel. It was never finished and consists only of choir space, parts of the east transept walls.....