Susanna Gregory is the pseudonym of Elizabeth Cruwys, a Cambridge academic who was previously a coroner's officer. She writes detective fiction, and is noted for her series of medieval mysteries featuring Matthew Bartholomew, a teacher of medicine and investigator of murders in 14th-century Cambridge. Wikipedia
The definitive Wikipedia entry for Susanna Gregory. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Susanna_Gregory