Bruton Town is an English Folk song featured on The Pentangle’s first album (the first LP I ever bought). It tells the story of a young woman whose lover is murdered by her two brothers, because they do not think him worthy of her.
According to this link the song:
is a version of the story Isabella and the Pot of Basil, made famous by Boccaccio in The Decameron, but the ballad obviously draws on popular tradition since then. It is also known as The Bramble Briar, The Jealous Brothers, The Merchant’s Daughter, and The Murdered Servantman, and can be found in 100 English Songs, edited by Cecil Sharp who collected it in 1904.
… and the Boccaccio story, together with its link to a poem by John Keats may be found at:
Giovanni Boccaccio. The Decameron (ca. 1353)