Shakespeare wrote Edward III 'beyond any reasonable doubt', scholars say, and his RIVAL Christopher Marlowe co-wrote it

Computer analysis credits Shakespeare with 23 segments of the play, "the lion's share", and Marlowe with nine. Dr Rory Loughnane of the University of Kent led the study with Brett Greatley-Hirsch. They compared the text with securely attributed works by 10 playwrights active from the late 1580s to the mid-1590s. Marlowe was "unexpectedly found for the first time", Loughnane said.

The history play was first published anonymously in 1596, with no author's name.

The word "martial" gave Marlowe away: he uses it often, but his peers rarely do.

Loughnane said the discovery "changes both the Shakespeare canon and the Marlowe canon."