Edith Mary Pargeter, also known by her pen name Ellis Peters, was an English author of works in many categories, especially history and historical fiction, and was also honoured for her translations of Czech classics. She is probably best known for her murder mysteries, both historical and modern, and especially for her medieval detective series The Cadfael Chronicles.

The Cadfael Chronicles is a series of historical murder mysteries written by the linguist-scholar Edith Pargeter (1913–1995) under the name "Ellis Peters". Set in the 12th century in England during the Anarchy, the novels focus on a Welsh Benedictine monk, Cadfael, who aids the law by investigating and solving murders.