 East of Glasgow Cross is St Andrew's in the Square, the oldest post-Reformation church in Scotland, built in 1739–1757 and displaying a Presbyterian grandeur befitting the church of the city's wealthy tobacco merchants.Also close by is the more modest Episcopalian St Andrew's-by-the-Green, the oldest Episcopal church in Scotland.The Episcopalian St Andrew's was also known as the "Whistlin' Kirk" due to it being the first church after the Reformation to own an organ.