premise: Edward Stourton, 10th Baron Stourton (c. 1555-7 May 1633) was a younger son of Charles Stourton, 8th Baron Stourton and Lady Anne Stanley, daughter of Edward Stanley, 3rd Earl of Derby. His father was executed for murder in 1557. He succeeded his brother John in 1588.
hypothesis: Charles Stourton murdered Lady Anne Stanley in 1557.
reason: There is no information about who Charles Stourton murdered. I suspect this was difficult for the system because Charles and Lady Anne's names appear close together and close to the year 1557.